Most Liked is probably an official chess.com post from a big event like World Championship coverage or something like this I imagine and most disliked is probably some troll account post which gets banned for trolling.
These are just my educated guessed though. I don't know if anyone keeps track of ALL 100 million plus chess.com members for seeing most likes/dislikes.
Does anyone know what the most liked post or comment is on this site? I’d also be curious to see the most disliked one as well.