if you look at your original post the ss there shows it all :
23:38:35 auto smth (host bot is on)
23:39:01 xolokost joins the room
23:39:35 auti smth (host bot still on)
TBH 99% of the users that use Hostbots have NO idea how to make it join the room without them present in there as well.
So in this case this is not sufficient proof since the player you accuse enters after the hostbot is on.
Next i`d like to say to your SS of pings - if you check your last post Glorior has the same 109 ping as the user you accuse - Ping change all the time (if yours or the other players ISP or PC are a bit shitty ) WITH or WITHOUT tunneling. So pings is not sufficient proof as well.
There are other ways to detect and ban those players.