For now we need to switch instance when viewing the topic, then only can comment using the desired account. Would be great to switch account when writing the comment itself.
This would be very useful. Or at the very least an indication of which account you're about to comment with would definitely save some embarrassing miscommunications
You can see the instance while actually commenting as long as you remember to scroll up. But for people with multiples in the same instance it could do with being a lot clearer that's all.
(no shade, love the app, dunno why I feel I need to make this disclaimer but here we are)