The solution to “too much RSS” is the same for Twitter. Unsubscribe/unfollow. Twitter does not require you to follow someone to interact with them. I follow relatively few people directly yet I have themed lists following other accounts. If I want local news I check my local list.
Twitter works quite well in this regard vs. Facebook where you need to be “friends” to interact.
To expand, ! means it's a more dangerous version of the method without the ![0]. A method could be dangerous, but not have a safer counterpart, and thus be named without a !.
The huge benefit will be when this is used in conjunction with the self parking system. You drive up to the front of your house, get out, and the car drives itself into the garage and plugs itself in.
I've done the same. The coupon code box screams, "You're a sucker if you don't have a code to put in here."
I go searching for a code. I find a few great ones that have expired but nothing active right now. Now I can continue my purchase and feel like a chump or abandon my cart. The latter usually wins.
I'd much rather use features that are consistent and that I am familiar with on my device (zooming in Mobile Safari) than every Tom, Dick, and Harry deciding how they are going to cripple their site because User Agent =~ /Mobile/.