I had this too for my extension - as mentioned there’s a security explanation tab now on the developer dashboard. I also removed any http requirements and made then https and stopped using external scripts/css hopefully enough - annoying their messaging is so vague and menacing.
They are growing in Scotland according to the Wikipedia page - https://en.wikipedia.org/wiki/Wollemia and I've seen a large one growing unprotected at Gardens by the Bay in Singapore.
I have two of these Wollemi pines after reading about the story of them a few years ago and being fascinated (I paid $100 for them but worth it to tell people the story). The trick to keeping them alive is to not do anything with them at all I think.
I've had the same issue with my extension - it has 250k users and it was removed a few days ago with no warning. I recieved one reply 12 hours later saying there was "too many keywords" in the description. It has been in the Chrome Web Store for at least 5 years with the same description - very odd and it is still not restored.
On a interesting side note Optimizely was a very early customer of ours (BuiltWith) starting in 2010 which helped them find customers for their own tool based on sites using their competitors (which at the time wasn't very many), I don't think it will bother them that other businesses can do the same thing.
Glad to see all these other tools in the market now there was and is clearly a need for it.
I've found about 80 TXT records with <script tags in them - most of them look like the person not understanding where to paste a JavaScript snippet over XSS attempts, here's all of them -
We've excluded most websites which contain user generated content because of the false positives they give off like this. We've added twitter.com to that list.