Lol, Loli did the same thing to me; a short moment after I accidentally ate whole of someone else with [WL]. Maybe it's lack of [WL] tag in my nickname. ;_;
You don't have to team to do well on that sever. If you're skilled (it's not hard to be good at agar.io), you can just take #1 by making a few risky moves. Harder to hold it, but partly because it gets so boring when you're moving many times slower than you were originally. I took #1 with 3 different names in the past 30 minutes on that server without teaming, so it's not very difficult.