I've added a poll to the thread.
Also, forgot to say but when I went to try out the server a few weeks ago... Renderman was completely harmless. Outside of minigame, I jetted around and, while he appeared nearby, did nothing but stand there until I turn around. Inside of minigame, he never appeared.
This sounds like fairly normal behavior, Render tends to do odd things like that. Maybe you had the spawn-rate set too low?
On the other hand, I have had some reports of weird minigame-related bugs, but I haven't been able to recreate any of them myself. Try testing it a little more, maybe raise spawnrate. If that doesn't work, you might have an add-on that is somehow conflicting with the mod.
The bot just spawns near you on the same level. It then strafes back and forth while moving towards you to overcome walls and corners. It also jumps or crouches every once and a while.
This is pretty much how it works, though it leaves out one thing. The mod actually uses a lightweight 'node generator' that runs every time Render spawns. This makes sure Render always spawns with a path to the player.
The node system also gives Render the ability to spawn around corners and ambush players. This worked great in testing, but in actual use it doesn't work as well as expected. Right now it's somewhat rare to see it in action, but Render
can navigate builds.
There is still a lot of room for improvement in Render's AI (and yes, this will probably be good for Blockland bots overall). Once glitch guns are finished, I'll work on this system a bit.