Being able to lock the threads have absolutely zero impact on thread spamming. This is already an issue, which has nothing to do with thread locking. Players being able to comment on a spam thread won't change the fact that it's spam in any shape or form. A locked spam thread will be treated the same as an unlocked spam thread. The report button still works on locked threads just as good as it works on unlocked ones. It will not increase or reduce the amount of spam threads that are created.These are the negatives;
People could make a thread and lock it straight away for no reason, this will flood the thread section with threads which no one can reply on.
It's not the hardest thing for a staff member to lock a thread, and we try to do it as fast as we can.
This is such a small thing which isn't really that necessary to be added, as like I state above staff can just lock it simply, there's no need to implement players able to lock just so they can do it instead.
Yeah, it's a small improvement. Yeah, it's not necessary, but neither was automatic thread locking after a few weeks. The real question is not if it's necessary, but will it help in any way, shape, or form? The answer is yes.