Right now most Swarming RPCs accept a limit of up to 1000 items being returned by each call. In practice when using multi-threaded python, this can cause heavy memory usage. The difference between 200 and 1000 items is large, so we should encourage users to use lower limits, to reduce the strain on each instance.

Enforcing the limit is trivial, but we do not want to break current users, so the first AI is to identify requests using a limit >200 and fixing the clients.