I started with server-side php scripts (SimplePie, IIRC) and got banned so I moved to client-side. I don't believe that it is in our best, long-term interest as users to make publishers aware of the possibility of aggressive filtering and page modification.
But let me donate some (US centric) general news negative keywords and phrases for you to try;
Yes, I've been using Tampermonkey for filtering and modifying sites I visit frequently for 5 years or more. Before that, Ublock to render the page to my preferences. I started with filtering unwanted items in Craigslist and it grew from there. Now, I even filter HN.
My filters mostly remove topics but I also highlight articles with topics of interest. I use this along with scripts and extensions to "white-out" any articles I've already seen.
As you mentioned, though the logic is generally the same, the script has to be customized for each site.
There are concerns that Manifest 3 will cripple adblocking and many userscripts so I've recently moved to Firefox (Crostini).
With the demise of many of the Craigslist national search apps, I ended up taking SimplePie into that realm and produced a 418-CLfeed search engine for personal use as a collector/hobbyist ...OK, hoarder. Works!
ScottWhigham is correct, in my case it was 'gain' not salary. But the income averaged around 40-50k USD for years. I bootstrapped it with personal funds and keystrokes. (Sites started around 1994. Sold out 2011.).
The current crop of Youtube commentors are the target of this purge, not collateral damage. Big G's high$$ advertisers aren't interested in being associated with free-form comments.
But let me donate some (US centric) general news negative keywords and phrases for you to try;
'alex jon','buy twitter','Roe ','nicole','9/11','capitol riot','jan\. 6','union','omicron','rushdie','sinema','adams','bannon','Bezos','Biden','Boeing','Camilla','Carlson','cheney','chess','desantis','fetterman','ftx','gabbard','Harris','holmes','hurricane ian','jackson','Manchin','mask','MCc','McGa','McGr','musk','Newsom','nord str','Oath K',' palin','pandemic','Pelosi','Pfiz','powell','rogan','Sunak','Trump','truss','twitter','Uvalde','vaccin','virus','whitmer','zelensky', '#_SOFTnews_SPORTS_SHOCKnews_#=>>>', '\\?','\\] - \\| CNN','5g','for 202','from 202','in 202','of 202','49er','76er','abortion',' abus','ACC ','activis','actor','actress','adele','alien','allege','amputat','amtrak','Apple','argument','artist','ashes','astro','asylum',' aunt ','babies','baby','backs','BAFTA','baseball','basketball','batman','bear ','Bieber','bishop','black hole','blackface','blue ori', 'bomb','Bowl','box off',' boy ','breach','bride','Bronco','brother','Browns','brutal','burglar', 'Cardi ','cardinal','catholi','child','Christ','city council','civil war','climate chan', 'coach','coin','college','concert','Confed','Corvet','could ','county','cowboy', 'CPAC','Cramer','critics ch','crypto',' Cup ', ' dad ','daddies','daddy',' dads ','danc','daughter','davids','dead after','dead at','deadpool', 'debate','deficit','depp','deput','depress','Derby', 'Diana','dies age','died at','dies after','dies at','die in','dies in','dies of','dismemb','divorce','dragon','dream','duchess','Duke', 'e-cig','eagle','ebola','eclipse','editorial','eilish','elephant','emoji','Emmy', 'endorse','engage','entertain','epstein','ESPN','Everest','execution','expect','explo', 'Facebook','family','fashion','father','Fentanyl','fiance','fiery','film',' fire','flood','football','for today','formula','fraternit','funeral', 'gala ','galaxy','gender','Giants',' gift','giraffe','girl','glacier','globes','goal','golf','Grammy','grizzly','groom','gym', 'Hannity','harass','Harry','hero','Hollywood','homeless','honor',' hope','horos','hostage','house fire','st Houston','th Houston','husband','Huawei', 'immigra','infant','inmate','Instagram', 'jackman','jackpot','Jay-Z','Jazz','jobless','jubil','Junet','justice','Kanye','Kardash','kelly','kids ',' kill','king ch','king jr','kitt','KKK', 'lakers','league','LeBron','LGBT','lottery','Lovato','lunar', 'Madness','man gets','man shot','man kill','marathon','market','Markle','marlins','marriage','married','Mars','marvel', 'measles','Meghan','melt','memor','MeToo',' Mets ','might','minister','MLB','MLS ',' mom ','momma',' moms ','moon','mortgage','mother','music', 'NASA','NASCAR','NBA','NCAA','Netfl','NFL','NHL','Nintendo','Nobel','nominate','nominee','NRA ', 'obit','Ocasio','oil spill','Olymp',' Open','opioid','Oscar','overdose', 'Padres','pagaent','parade','Paralympics','parents','Parton','pastor','Patriot','peloton','Phillies','pistons','PGA','police:','police kil','police officer','police shoot', 'Pope ','potential','Powerball','preach','priest','prince','proposed','Proud Boy','Pulitzer','pupp','Qualcom','queen', 'racism','racist','radio list',' rage','raiders','raise','raising','realtor','recipe','rememb', ' rent ','rental',' rents ','resolu','rhino','Richard','rugby', ' seal','seal ','season','seeks','Serena','Series','severed','sexual','shark','shoot','showbiz','simpson','sister','slaught','smith', 'soccer',' son ',' sons ','Sox','SpaceX','Spacey','spears','spider','spotify','Spurs', 'stab ','stabb','starbuck','stock','student','suicid', 'tanker','teachers',' teen','tennis','Tesla','this day','ticketm','Tiger','title','today in','toddler','tornado','tortur', 'tournament','trailer','troop','Twins','Uber','uncle','Ute ','Valentine','vax','veteran','virgin gala','vuitton', 'Wall St','Walmart','warming','warrant','wedding','Weinstein','whale','widow','wife','wildfire','Wimbledon',' win ',' wins ', 'wolver','wrestl','Xiaomi','year-old',