Yeah there are two kinds of comments. In nostube I use kind 1111 which is meant for general comments for all kind of nostr content while other clients use "social media replies" (kind 1). I hope we ca...
There is normally already a hatmonization in form of NIP-22. NIP-22 introduces kind 1111 and says that this is to be used when answering to events other than kind 1.
1