What is the definition of a 'hot thread'?

[castlewars]

Some of the threads I come across are standard threads (with the standard thread mark and a pale yellow briefcase for new posts) and some are 'hot' threads (same mark as a normal thread but has lines above it, and a red briefcase for new posts). What's the definition of a hot thread, and what is the difference between that and standard threads?

[RaZoR LeAf]

http://www.serebiiforums.com/images/type/dark/thread_new.gif - Regular Thread, new posts
http://www.serebiiforums.com/images/type/dark/thread.gif - Regular Thread, no new posts

http://www.serebiiforums.com/images/type/dark/thread_hot_new.gif - Hot Thread; over 20 replies; new posts
http://www.serebiiforums.com/images/type/dark/thread_hot.gif - - Hot Thread; over 20 replies; no new posts

They also become hot threads based on a number of views; as stickied threads with zero replies are hot threads; but I can't determine that from observation. I image a quick search of the net would have the answers.

http://www.serebiiforums.com/images/type/dark/thread_dot_hot_new.gif - If it has a black dot in the icon, then it's a thread you have replied too.

[castlewars]

http://www.serebiiforums.com/images/type/dark/thread_new.gif - Regular Thread, new posts
http://www.serebiiforums.com/images/type/dark/thread.gif - Regular Thread, no new posts

http://www.serebiiforums.com/images/type/dark/thread_hot_new.gif - Hot Thread; over 20 replies; new posts
http://www.serebiiforums.com/images/type/dark/thread_hot.gif - - Hot Thread; over 20 replies; no new posts

They also become hot threads based on a number of views; as stickied threads with zero replies are hot threads; but I can't determine that from observation. I image a quick search of the net would have the answers.

http://www.serebiiforums.com/images/type/dark/thread_dot_hot_new.gif - If it has a black dot in the icon, then it's a thread you have replied too.

But I've seen a hot thread with 18 replies!

[Cassiopeia]

But I've seen a hot thread with 18 replies!

I think if a thread also has <150 views, it is also considered "hot". But I'm not totally sure.

[RaZoR LeAf]

But I've seen a hot thread with 18 replies!

Yes, that's why I said:

"They also become hot threads based on a number of views; as stickied threads with zero replies are hot threads;"

Thanks for reading.