About necro posting:
Necro posting is when you reply to a thread that has had no new replies for 30 days or more. When you try to make a post in these threads you are given a warning message letting you know that the thread is "dead".
Why would necro posting be bad? It bumps back up threads that are no longer active while pushing down the active threads giving active threads less exposure. In most cases this isn't a big deal at all on this forum. We typically don't enforce this rule outside of the following boards.
Your Releases, Mugen 1.0 +
Your Releases, older Mugen
Projects
Sprite Projects
The exception is if you are the topic starter and you are necroing to give new information/updates. If you're not the topic starter you may necro if you have something
useful to add. Valid feedback, resources to aid, etc
The
Request board has it's own rules about necro posting. Be sure to read them.