Another aspe to consider is of he has been following up with the thread or not, some are fond of creating a thread and leaving while the topic remains a controversial area of concentration by many to discuss on, this doesn't shows anything than we need to see to the reasons why we do somethings and how we are being desperate on seing them going well as intended, than creating them and leaving.
Regardless of he follows the thread or not, there is a point this discussion will get to and it automatically becomes a spam thread and at that point the moderators will lock the thread, I understand how it a pain in the ass to so ops creating threads and there after abandoning the thread for whatsoever reasons.
I have seen a couple of threads that are similar to this abd if my guess is right it the means ops is likely a spammer that creates multiple threads without following the discussions therein.
Well, definitely right that there is a stage it will get to, posting on this thread becomes a spam, this is if posting here is not already a spam, because this is the 8th page already, what exactly are we still discussing about here?
Well, to be more frank and serious now, as long as a thread is open and remains on the first or second page of a board, people will always have something new to say, and this is minus the fact that there are some people that might still come across the thread for the first time and have something they feel like contributing the the OP's discussion, this to me is not exactly spam, a comment is considered to be a spam when what the commenter or poster is saying is completely different from the OP's topic, but when comments are in line with the thread's topic, doesn't matter if the thread has 10 or more pages, that to me is no spam
And for the records, users like op; who create threads and abandon it; will always exist on this forum, except a penalty for doing so is introduced.