there are plenty of newshosting resellers that use the same exact servers that are much cheaper than $15 a month or even $10 a month. use one of the backbone maps to see all of the various ones.

US versus EU servers as far as server content goes will be the same thing.

Astraweb is the same exact servers as Newshosting that you glowingly recommended up thread. cant be that bad i guess. ;)

that map is a bit out of date but also doesnt show all the sellers. this might show things better, https://whatsmyuse.net/

blocknews, frugal usenet and usenetnow take cash in the mail, an option at checkout. maybe others will but they dont make it obvious so you would have to contact them directly. but honestly i wouldnt worry aboutr using your card. paying for usenet access is just as legal as paying for isp access.

i dont think any service is going to give you free weeks or a month with no strings attached. if they did everybody would use them and not pay. you can just buy 1 unlimited month of frugal usenet for 5 bucks (not a subscription) and call it good.

you dont have to pay. you can get an account on google groups or eternal september or one of the other very few remaining text only servers but you get what you pay for. poor interface (google groups) or various account or posting restrictions. no binary groups, etc.. for a couple of bucks, you can get better service quality, high message retention, faster speeds etc. it costs significant money to run these servers now with all the bandwidth and hard drives.

Here is a good list of active groups, i am sure there are more. of course plenty of binary groups are active to. if one you like isnt that active, why not try to revive it?

alt.culture.usenet:
alt.fan.usenet:
alt.obituaries:
alt.privacy:
alt.tv.simpsons:
ba.broadcast:
comp.ai:
comp.arch:
comp.compilers:
comp.dcom.telecom:
comp.infosystems.gemini:
comp.infosystems.gopher:
comp.lang.c++:
comp.lang.c:
comp.lang.forth:
comp.lang.misc:
comp.lang.python.announce:
comp.lang.python:
comp.lang.raspberry-pi:
comp.lang.tcl:
comp.misc:
comp.mobile.android:
comp.mobile.misc:
comp.os.cpm:
comp.os.linux.announce:
comp.os.linux.misc:
comp.risks:
comp.sys.apple2:
comp.sys.ibm.pc.games.action:
comp.text.tex:
comp.unix.shell:
gnu.emacs.help:
misc.legal.moderated:
misc.taxes.moderated:
news.admin.moderation:
news.announce.important:
news.announce.newgroups:
news.groups.proposals:
news.groups:
news.software.readers:
rec.arts.drwho:
rec.arts.movies.current-films:
rec.arts.sf.tv:
rec.arts.sf.written:
rec.autos.sport.f1:
rec.aviation.soaring:
rec.bicycles.tech:
rec.food.cooking:
rec.games.backgammon:
rec.music.beatles:
rec.music.classical.recordings:
rec.radio.amateur.antenna:
rec.radio.amateur.boatanchors:
rec.radio.amateur.equipment:
rec.radio.amateur.homebrew:
rec.radio.amateur.misc:
rec.radio.amateur.moderated:
rec.radio.amateur.policy:
rec.radio.amateur.space:
rec.radio.info:
rec.radio.shortwave:
rec.sport.rowing:
rec.woodworking:
sci.astro:
sci.electronics.design:
sci.electronics.repair:
sci.logic:
sci.physics.relativity:
sci.physics.research:
talk.origins:
uk.comp.sys.mac:
uk.radio.amateur.moderated:
uk.rec.sheds:
uk.sci.weather:

i can understand that about crypto. Fwiw, this discussion was posted recently about usenet and crypto, https://lemmy.dbzer0.com/post/2612428 Others take crypto and several of the ones mentioned take it directly without a processor and have better perf. than the newsdemon system.

the older stuff on newsdemon is hit or miss anyways cause of the way they handle their storage so it will be hard to know if its gone cause they suck or gone cause of takedown.

if the post is from 2 years ago ntd or dmca is not going to make a difference. it will be long gone regardless.

they all "miss" some content. if it has been taken down from usenet you may just have to look for a repost, seems like everything is reposted 8 different times. if its missing cause its to old then maybe you need the blocknews block for full retention like you said.