usually I’d rather use the mention feature (
@) rather than the invite button at the button of a topic. because when I mention someone, I can explain him the reason of mentioning.
when the cm wants to invite several users to a topic, each for different reasons, the topic becomes ugly if he use mentioning in a reply.
also in a fruitful discussion, where everyone is making arguments about the main subjects, jumping in and saying “I think @someone can help in this matter” is like a noise!
also this feature already exists for the global invitations! and I’m sure some of the reasons why it felt needed there, also fits this situation.
at the end, may you extend the customize-able messages also to the invite button at the end of each topic?