If you allow people to report threads that get too cluttered, whatever good intentions there are, the system will be abused. Every butt-hurt furry will would report anything that dared to ridicule their hindquarters. Also it opens the floor for mods to get inundated with a myriad of reports from every “good Samaritan” who has differing ideological views of when the thread has veered off topic.

Though if we go with the other end of the spectrum, we’d have threads that are filled with pointless bickering that only interest a handful of people while everyone else would be happy to see that thread drop into the obscurity that is page 2.

I am of the opinion that peps shouldn’t be allowed to report cluttered threads unless there is an obvious reason. The decision to clean threads should be left to the mods discretion, because although there are more than one of you guys, and all with differing tolerance levels, there are a lot less of you than the snivelling masses; all of them with their own soap box and opinion.

tl;dr
If you mods think it’s gotten out of hand, clean it up. If not, then leave it.

Now if you’ll excuse me, I’ll go back into relative obscurity.