Quote Originally Posted by hoglahoo View Post
I don't think there's anything wrong with it. But it may be helpful to inform someone who appears to not realize that the people they are replying to left the discussion and/or the forum years ago so as not to leave them hanging. This does not mean the necroposter is bad or should be vilified - I think necroposting by the unaware is just sort of an internet faux pas. I've done it accidentally, and do it on purpose sometimes when I want to see if there is any renewed interest in a particular line of discussion, no big deal to me
+1.

Threads usually involve discussion. After severl years, the posters which were involved are unlikely to still be there to read or respond. Because of that, it is generally frowned upon and a sign of 'bad' internet manners.

The only times when old threads should be revived is if pertinent new information is added which needs the original thread for context. For example, discussion about a court case, followed by adding the ruling when the case has filtered its way through the court system, a couple of years later. Things like that.

Generally it is much better to start a new thread and link to the old one unless there is actual value to reviving the original thread.