Thread:Extension talk:MassMessage/Incompatible with existing recipient list format/reply (3)

OK, these sound like good reasons - I'm unfamiliar with the problems that ruled out interwiki links as solution, but I'm not questioning the decision to go with the parser function. And I don't have strong feelings about the category feature (never used it myself).

My main point is that the need for this conversion work and (possibly) the removal of the category feature should have been communicated more clearly when announcing MM as a replacement for GMD and EdwardsBot, redirecting pages etc.

And +1 for the wrapper template idea.