Sup fellas 
The posts in question are the following:
Looking at the posts, I can understand why some of those reports are marked bad. Don't get me wrong, they are mostly not very constructive posts and I have nothing against posts like that getting deleted, but they don't look like a regular bumping spam either but just a bunch of people arguing and complaining. To be honest, I prefer mods handling cases like this, rather than leaving reports like that as unhandled which is extremely annoying, at least for me. I mean, if its bad then its bad, as unhandled post that is older than 2 weeks is euphemism for "soft bad" but I guess mods sometime don't wanna ruin people's reporting percentage which could cause people being reluctant to report posts. At least that's how I see leaving posts unhandled indefinitely.However, to be clear on your question; I think reporting just the original thread, indicating bumping services or accounts have been artificially bumping it would be better, to prevent clogging up other moderators report queues. Then, the moderator handling that report, can either decide to leave it to someone who's willing to go through the thread, and sort it out or they can go through it themselves, and then mark it as handled once completed.
While that sounds good on paper, would it actually work? I mean, do moderators work like that or this is just your suggestion how this could be sorted in the future? Iirc, I tried something like that year or two ago, with no success so I just gave up on that approach.