Hey thanks! I think you mean Thunder. :-) Thunderbird is a mail client from Mozilla (also a great app lol).
If you have a bug or feature request to report, you can create an issue on GitHub. https://github.com/thunder-app/thunder
If you just want to have a discussion with the devs and other community members, you can check out our Matrix. https://matrix.to/#/#thunderapp:matrix.org
It’s not exactly what you’re asking, but you can view the post as a different user, which would presumably have a different blocklist, so then you could see the comments.
Video: https://files.catbox.moe/l61lry.mp4
I like the idea of being able to view anonymously, too, from your configured anonymous accounts. The infrastructure is there in the post to “view as…” so that might not be too hard to add.
That would be awesome!