As per original post I am trying to block/filter communities, e.g. I am able to extract the following list of communities from my current manual blocklist with this regex:
^(?!.*Meme|.*meme|.*News|.*news|.*politic|.*Politic).*$
Memes@lemmy.ml
Lord of the memes@midwest.social
politics @lemmy.world
News@lemmy.world
Politics@beehaw.org
Fox News
World News@lemmygrad.ml
World News@lemmy.ml
World News@lemmy.world
United States | News & Politics@lemmy.ml
Hacker News@derp.foo
U.S. News@beehaw.org
Politics@lemmy.ml
news@hexbear.net
Interesting News from Around the World@lemmy.zip
CanadaPolitics@lemmy.ca
news@lemm.ee
memes@hexbear.net
Memes@sopuli.xyz
Antique Memes Roadshow@lemmy.world
politicus@midwest.social
Australian Politics@aussie.zone
US News@lemmygrad.ml
Atheist Memes@lemmy.world
United States | News & Politics@midwest.social
Dank Memes@lemmy.world
Political Memes@lemmy.world
linuxmemes@lemmy.world
Star Wars Memes@lemmy.world
ADHDmemes@lemmy.world
BecomeMe@sh.itjust.works
RPGMemes @ttrpg.network
NZ Politics@lemmy.nz
memes@slrpnk.net
Tech Support Memes@lemmy.ca
Lefty Memes@lemmy.dbzer0.com
Animemes@burggit.moe
Relationship Memes@lemmyis.fun
drugmemes@lemmy.world
Animemes@ani.social
Furry memes@yiffit.net
politics@hexbear.net
Political Humor@lemmy.ml