I am just speculating but here's what I think will happen. If you report too many posts which didn't had anything wrong with them, then after sometime mods won't pay attention to your reports.
AFAIU they don't ignore reports like you are speculating.
Well maybe not at first but if you keep reporting posts which don't need to be reported at all and/or if they suspect that one is simply trolling then they might stop paying attention to them or simply ban them or take away their reporting rights (if there is such a thing).
That would be bad moderation imo. Reporting posts that are doesn't need to be reported will likely lessen your accuracy on reporting. Also, I don't see how "trolling" could actually help the discussion in any way; you can report those troll posts if you think that it is an off-topic reply or doesn't have something to do with the OP or any posts within that thread. And afaik in this forum, there is no such thing as removing the report privilege everyone has because it is one way of helping the mods on removing insubstantial posts and/or replies.