Here's what I learned after disabling comments on this post
- after posting, you can't re-enable comments
- but you can edit a published post to disable comments
- disabling comments also disables the like and emoji-reaction feature
- you can still reply to the post on #Mastodon and it does show up on the post at #Hubzilla
- got some flaws
In conclusion, if you want to use this feature and have it work, you'll have to post to a privacy group that only has people on Hubzilla, otherwise you might be getting comments from other places in the fediverse.