Definition & Meaning of "necropost"in English

What does "to necropost" mean in internet slang?

The structure combines "necro" (from necromancy, meaning bringing the dead back to life) with "post," forming a verb that describes reviving an old discussion. It is used to describe replying to a very old thread or conversation, often years after the last comment, which is typically seen as annoying or pointless by other users. The term originated in early forum and Usenet cultures during the 1990s and early 2000s.