The worst part is 99% of the time the person asking "why don't you use X?" has never used X, and 90% of the time doesn't even understand X, and 50% of the time

The worst part is 99% of the time the person asking "why don't you use X?" has never used X, and 90% of the time doesn't even understand X, and 50% of the time has merely seen "why don't you use X?" used for this particular situation before, and is trying to score internet karma points / upvotes by being the first to ask it. This also happens in companies. Unfortunately, in tech you're penalized for not speaking up in meetings, and the easiest contribution to make is often "why not X?". Sad but true.