I bought keys Pillars of eternity and Divinity:Original sin on G2A two weeks ago, activated them here on GOG and everything looks OK. I already downloaded Pillars to my HDD...today i check my game list and both games disappeard...does something like it happened to somebody else?

You did not buy the games directly from gog. Which is never a good idea, since other sites are not officially supported, so not legit. So your keys are probably deactivated because of fraud:
https://www.gog.com/forum/general/3_games_disappeared/post15

G2A is known source of stolen goods and frequent source of game keys that get disabled on GOG, Steam and other services because they're illegitimate. Just FYI for anyone stumbling here again.

You do realize this thread is over a year old right? :P

It's such hot information, it's relevant a year later!

Night of the Living Thread!!!!

True
https://www.gog.com/forum/general/gog_keys_on_g2a_and_kinguin_pilars_of_eternity

Though I wonder why he would search for a thread a year old about someones pillars of gone tomorrow.

It's happened twice today.
I honestly can't figure how people even find a thread that no one has posted in for over a year.

i was going to say something similar tinyP

"I REALLY gotta find a thread where someone bought pillars of eternity from kinguin, it's an emergency!"

Maybe there's some special department of the NSA you can call up for something like this.

Even worse the necromancer appears to have realised how old the thread was and still posted..
You can forgive someone who used the Gog search and didn't realise that for some reason the first result it returned is 5 years old but if you're aware that the thread is old and dead then posting something like this is just bizarre...

easiest way to make drama, bump a year old post