That wasn't a problem when the bug report counter was added. So why should spam suggestions be a problem?
Worst case scenario you guys just ignore them or straight up delete them.
That's pretty much what's already happening now with my suggestions.
There's a difference between the bug counter and a suggestion counter. For one, the bugs are a lot easier to moderate. If it's a bug that hinders play game and/or is game breaking, we fix it. If it's not, we decline it.
Suggestions are different in the sense that people can spam the dumbest suggestions that shouldn't be declined, because it might be something that some players want to see, but are not good enough to be accepted either because it's extremely low priority, so it just ends up flooding the section with stuff that is a waste of time to add, especially because you'll see 10 replies under these posts saying "sure wouldn't mind seeing it added, support".
In my opinion we're in a good place right now with suggestions, most of them are pretty good and they're suggested by people that genuinely want to see the suggestion added.