Yes I do agree with you sir, but just type in on google what is a better site and you will see why I say so.
Yes puzzles and lessons are much better than on lichess but on lichess there is a large variety of noobs to train with at your level and a studies factor which is crucial.
But I recommend Chess.com over lichess for normal players but not beginners.
Who are beginners ?
I consider myself a beginner for example.. no doubts.. but what level of raiting one must to get in order to stop already to be a beginning player?
Well that is a good question. People rated 1 500 FIDE and above are considered intermediate players, and those below 1 200 are beginners. As not everyone has FIDE rating you could speculate on their strength. For instance 1500 rapid on chess.com is better than 90% people so although 1 500 is not much, and is certainly still weak compared to strong players, it is probably not a beginner rating. Intermediate perhaps... on the weaker side probably.
Then that's okey.
My raiting vacillates from 1350 up to almost 1600 here... but I don't think that I am an intermediate player yet... because I make too many foolish mistakes during the game... In fact even two Kings opposition is still the difficult task for me.
But I wonder... How can I know what is my FIDE raiting ?
And if we take... for example... FIDE raitings and over here raitings of our chess.com players... What raitings will be higher ? ))
I know one serbian IM who has only about 1800 points of raiting in rapid here.
Top ratings here are inflated obviously as there is no human player with 3000+ rating in real life. Weak ratings around 1 000 are probably inflated as well. I've read somewhere that based on some inquiry based on people with FIDE and online ratings somewhere between 1300-2 000 online ratings start to catch up FIDE ratings, so there is even some online ratings that is on average stronger than OTB counterpart. 
My opponent decided after I had placed my knight to put his Queen in a position where my knight could capture it. As a result he instantly resigned only a second into the game. DO NOT DO WHAT MY OPPONENT DID!
Yes I do agree with you sir, but just type in on google what is a better site and you will see why I say so.
Yes puzzles and lessons are much better than on lichess but on lichess there is a large variety of noobs to train with at your level and a studies factor which is crucial.
But I recommend Chess.com over lichess for normal players but not beginners.
Who are beginners ?
I consider myself a beginner for example.. no doubts.. but what level of raiting one must to get in order to stop already to be a beginning player?
Well that is a good question.
People rated 1 500 FIDE and above are considered intermediate players, and those below 1 200 are beginners. As not everyone has FIDE rating you could speculate on their strength. For instance 1500 rapid on chess.com is better than 90% people so although 1 500 is not much, and is certainly still weak compared to strong players, it is probably not a beginner rating. Intermediate perhaps... on the weaker side probably.