Good:
I have Pixel Radar and a line shows a legendary is about to spawn and the line disappears, just a glimmer and goes away. I focus with my eyes if it would happen again and its not an invisible admin but the pokemon truly despawns itself like the server deletes it or something and I tried asking the owner and other admins and both are clueless what I'm talking about. I'm pretty sure they don't know what they're doing and just made a Pixelmon Server because they could.

I tried doing /lastlegend and not a single new legendary spawned.