i have found these bits of info


You'll have to load up sourcemod on your server and install the plugin that strips the vote kick command from being used by public players.

The plugin is broke at the moment due to one of L4D's updates. You enable immunity and you can still apparently be vote kicked from your server.

Only other option is to use that plugin to disable vote kicking to pubbers and install a separate plugin that votekicks.

Hang in there and hopefully we'll see an update that fixes their vote kick from kicking the people that own these servers :/

not just me then