theres a prob with that:
computers have a poor sense of positional play according to many top gms so if u play a blockade or restraining move for example the comp might give a ?! suggesting sumthin else but then the comp may show no mistake for the other player and u win nicely showing objectively your move was great but the comp did not value it properly
Helllo, I think computer analysis on this site should have exclams inculded,meaning they should give certain moves a "!" to our game. In that case we can know which moves by us or our opponents are good and we can learn from them, and not just the mistakes. I dont think it is very hard to implement that in today's world