https://forum.zonek.ro

A plugin that builds a list of people that are spectating you and displays it as a hudmessage. Also when you're dead you can see what players are spectating the player you are currently spectating.

Commands:
say /speclist - Toggles the list on and off (per-player)

Cvars:
amx_speclist <0|1> Disable/Enable plugin
amx_speclist_immunity <0|1> If 1, admins with immunity flag("a") will not show up on the spec list

plugin
source