As the title imples, you can spam pickups in the training hall by collecting pickups and droping them away from the spawn, then collecting more. I used this to test the how well the server would hold up to large quanites of pickups on the ground but after I droped about 3-4 dozen I got bored and quit.

A good solution to fix this is to destroy pickups when they touch the ground, kinda like the weights when you drop them outside of their zone.

I don't want this to effect pickups in the clockworks though, droping pickups in clockworks is completly fine because there isn't any pickup spawners thus limiting how many pickups can be in each depth to only a handful. This is only a small problem in the training hall because you can techically make infinatly many as long as you have space to go back to the spawner without picking up ones you have already droped.