I got in on reddit super early. Every few weeks I get a message from someone referencing a comment a decade old, now either featured in some youtube video or coming up in their google search. It's unnerving shit and I check my politics there a lot more than I do here. Just as a matter of user safety it's good that our posts disappear after a month or whatever. Maybe it's eventually a few months or a year, but if we ever return to the normal model of forums preserving everything forever it's a big infosec risk.
Your experience isn’t universal. It would be a great crime to delete all the useful information that we as a community have shared with each other. I’m not talking just about theory effort-posts but all kinds of small side discussions that we can rediscover through the search function. Links to free ebooks, reading recommendations, geopolitical musings, random organic discussions on topics ranging from Marx’s theory of value to the post-Stalin struggle for power. All of this content from genuine comrades that I can trust is highly valuable and it would be a shame to destroy all of the knowledge that has been built up over the last two years.