I’m just getting into it myself, the fediverse seems more like what I’m looking for in terms of social media/forums. Usenet is good for binaries but there’s some interesting discussion there too
alt.fan.usenet alt.folklore.computers alt.privacy comp.infosystems.gemini comp.infosystems.gopher comp.lang.misc comp.misc comp.mobile.android rec.arts.sf.written comp.os.linux comp.os.linux.misc comp.sys.raspberry-pi news.software.readers rec.autos.sport.f1 sci.astro sci.physics.research rec.food.cooking rec.arts.sf.written sci.crypt misc.test news.software.nntp rec.arts.drwho comp.ai alt.comp.os.windows-10 alt.comp.os.windows-11 sci.logic comp.language.python rec.radio.amateur.* uk.radio.amateur.* rec.woodworking rec.arts.sf.tv alt.culture.usenet free.usenet talk.politics.guns soc.culture.usa alt.arts.poetry.comments
Excuse the formatting
alt.fan.usenet
alt.folklore.computers
alt.privacy
comp.infosystems.gemini
comp.infosystems.gopher
comp.lang.misc
comp.misc
comp.mobile.android
rec.arts.sf.written
comp.os.linux
comp.os.linux.misc
comp.sys.raspberry-pi
news.software.readers
rec.autos.sport.f1
sci.astro
sci.physics.research
rec.food.cooking
rec.arts.sf.written
sci.crypt
misc.test
news.software.nntp
rec.arts.drwho
comp.ai
alt.comp.os.windows-10
alt.comp.os.windows-11
sci.logic
comp.language.python
rec.radio.amateur.*
uk.radio.amateur.*
rec.woodworking
rec.arts.sf.tv
alt.culture.usenet
free.usenet
talk.politics.guns
soc.culture.usa
alt.arts.poetry.comments
A good search feature on a client will hopefully find you communities too based on keywords in posts