I can no longer play games?

I suppose you are assuming the opponent is in the dark...

Collaboration… Requires social interaction, this every schoolboy should know... Different players see different things, working together, in this manner produces collective knowledge...

As previously stated, the opponent would have to be notified beforehand for this to be possible to begin with.

All I am saying is that, except under special circumstances (the two players are already friends, e.g.), the opponent would have no incentive nor reason to collaborate with the engine-user, since he/she would gain nothing from the exchange (because, quite honestly, the only thing that one could potentially learn from such a game would be what the best move is in a particular board state, which they could have determined anyways by plugging that position into the Lichess Analysis Board).

Indeed, they would instead lose half an hour of their life (or in the case of a correspondence game, they would lose five minutes of each day, spread over a week or so) that they could have instead spent playing a real, and balanced, game of chess.

@Nel_S

You are, seemingly, not too skilled at reading comprehension and lack imagination...

Be that as it may, it really looks as if you don't get anything out the daily chess style of play... The draw of correspondence chess is that one 'gets to' setup the board and move the pieces around, and then decide on a move, if you only give it a five minute glance, you are throwing the baby out with the bath water...

Why I say you seem to lack reading comprehension is because the implication of what I said implies both players are using their libraries, engines and brains to work on the game.... You seem to want to tie a disregard for the other player here, that is on you, and not along my train of thought...

Mabye lichess thinks ur a bot