Correct. Mod suggestions get their own topics, period ... that way each mod gets proper attention (and we benefit from new mod info). mention of other competing mods, like "I prefer this over that" is fine, but actual suggestions are a perfect opportunity to either create the new mod topic or post over there if it already exists.
Also, MAs don't need to put down other MAs' work ... they only need to promote their own. In fact, I would only lurk to answer open questions and correct false assumptions without even broaching others' work ;)