TheFleebs
thefleebs is a regular user on CollabVM, and possibly the first Russian to ever use the site. And probably the smartest one on the whole site! He rarely goes on the site though, and he only posts on the Discord on occassions.
He is the guy who owns eraser.ml, which runs on an intricate setup of network trickery.
He was mostly known for installing OpenBSD on the VMs, and tc.exe which installs TinyCore Linux onto the VM. He has not done it since 2018-2019 however.
He writes his stuff in C.
He also decompiled LMOS in one turn.