I used to use Freenode...

Use Libera if and only if you want to communicate with the people who used Freenode. (Actually, if you want to communicate with the people who currently use Libera; there are people who use Libera who never used IRC before, and a some old Freenode users who have followed their communities elsewhere.)

I think that both, freenode and libera will end up dead. I sure hope that Libera stops spamming soon though...

Libera Chat is not responsible for the spam. It's a https://en.wikipedia.org/wiki/Joe_job.

hey freenode staff here. SPAM SPAM SPAM. BUY OUR STUFF. WE CAN SELL YOU CHEAP BITCOINS OR WHATEVER.

notice that just because I said I'm freenode staff... that doesn't actually make me freenode staff.