I really really try not to post jokes until/unless the question has been answered or support been offered or the debate debated. I don’t always succeed at that goal, though, I admit.
If a thread is over 101 posts (“pages” doesn’t mean much, as you can set the length of those to anything you want - mine is still the default 50 a page, so for me it’s 3 pages, but it may not be for you), then I’ve got to have something fairly substantial to add that hasn’t been said already, or a strong disagreement with another post to make it worthwhile to post. In other words, I won’t generally “me too” a thread past 101 posts.
If a thread is, as stated in the OP, of “borderline” interest to me, I’m not likely to even *read *it if it’s past 101 posts, much less post to it, unless it gets linked to somewhere else and/or attracts my attention repeatedly.