throttle nats output

[pretentious7]

In certain conditions (ie. when a nonexistent backend is getting polled very frequently), too many messages are logged to nats. Having a throttle would alleviate this issue.

[paulgb]

If you're thinking of implementing this, let's talk first, there's probably built-in NATS functionality (either in the client or server) that we can take advantage of.

[pretentious7]

I don't remember why this was a thing, but nats is pretty quiet now so can close i think