Sports car/endurance sporting regulations

[Mike E]

We all love a good moan about track limits, safety cars, full course yellows, wave arounds, drive times, driver gradings blah blah blah. So here is a thread just for that. Let's keep the whinging in race and series threads to a minimum by complaining about it here! Fair enough if it's relevant to a race outcome, but general discussions about different approaches just pollute the race threads.
If you don't want to know, you don't have to read it.
And if we wander too far off piste in another thread we can be gently directed here by our fellow posters.