Hey there! As others have mentioned, there is currently no way to reply to private messages in Thunder. However, I have heard this feature request a few times, so I’ll try to increase its priority.

My priorities at this time is to add in additional comment moderator actions, so this will likely have to come after that is implemented. Hope that helps clear things up!

That’s correct. You can see them, but you cannot respond to them. And you cannot create new ones.