Simply check the last chat post, and if it is over 30 days, a red box will be indicated under the message creator. It will say that this thread is over (insert amount of days old) old. If you want to ask a question related to the mod, check the box that says "I am aware this thread is old, but I still want to make a reply.", but if you just want to say something that will clearly never happen or say something that doesn't help, don't reply to the thread.
Bumping a thread is replying to an old thread pretty much. Try avoid responding to threads with red check boxes
Why does it say WIP though? And I only asked as you were the only the person who seemed interested in this
It still says WIP most likely because the modder forgot about it, abandoned it or decided to stop without telling anyone. Either way, this mod is cancelled.