Can someone explain CM to me again?

Any rated player can teach a player that has more than 250 point's less than the teacher by definition (of how the elo system works and what it represents in terms of strength)

Now if his/her abilities to convey/teach is good or bad depends on the person and its background in theory in any case if the elo gap is big enough he can surely at least give lots of useful tips to the lower rated player.

As for the titling system imho all the titles besides GM (and maybe WGM ) are just vanity labels FIDE probably added not to lose any user-base since chess is not so popular (in absolute terms ) so that people that dont have the courage of becoming a GM dont cry and ragequit.

Elo is enough to signify your strength GM just signifies that you are a complete player in terms of endurance (in competitions time/mental pressure) theory execution strategy etc. There is no need for other titles than that.

We don't need to debate on the matter chessypaino is the reason for this discussion and seeing his post that he wanted to teach but doesn't want to work hard for the title that's sad I mean? You will not go anywhere even as a chess player keep wanting and not getting it. All title players don't need explaining to people as low as they are just play a good old fashion chess game. Ciao!!!

Like this guy is FM and yet he is 1700 FIDE! I do not understand!

#50, a one time license fee of 100 Euro. This is nothing compared to the fees FIDE charges for Elo evaluation or conctant licensing for arbiters.

PS: got the money multiple times back saving entry fees and chess.com diamond membership