Are we in the age of all CS problems being solved and everything being invented? Even if so, do LLM incorporate all that knowledge?

A lot of my knowledge in CS come from books and lectures, LLMs can shine in that area by scraping all those sources.

However SO was less about academic knowledge but more about experience sharing. You won't find recipes for complex problems in books, e.g. how to catch what part of my program corrupts memory for variable 'a' in gdb.

LLMs know correct answer to this question because someone shared their experience, including SO.

Are we Ok with stopping this process of sharing from one human to another?

There's https://cstheory.stackexchange.com/ for the more academic CS questions btw.

it is indeed a shame. if you are doing anything remotely new and novel, which is essential if you want to make a difference in an increasingly competitive field, LLMs confidently leave you with non-working solutions, or sometimes worse they set you on the wrong path.

I had similar worries in the past about indexable forums being replaced by discord servers. the current situation is even worse.

Web has been solved for a decade imo.