Revisiting Old Discussion Threads

It's just a discussion section, people can add even crappy contributions (not saying the contributions were crappy). Of course they're not allowed to spam or anything. Contributing or corroborating information is fine.

There's no rule against necroposting here it's just a netiquette thing. I don't think it applies to wikis since threads aren't bumped; and if someone's sick of being alerted by a thread they can unsubscribe. I don't think people even look at the dates on those threads... The only time I'd really say it's different, is if the response is to a user that's probably gone. Even then, though, the silliness is on the poster's head.

When it comes to useless posts, I don't think the age of the rest of the posts matters, anyway. If someone only contributes useless posts, or seems to be having trouble understanding the content of threads, that may take moderator involvement, but that's it. Necroposting, I don't think so; it's fine.

That's all; this thread is over.

If I could have ended this thread by just declaring it over, it would have ended a long time ago.

But I agree with your stance that there's nothing wrong with necroposting on wiki threads. I think everyone else here also (eventually) agreed that this wasn't about necroposting.