Rude and annoying signs on boats

I must say I rather dislike signs that say the likes of “please pass at tickover” and “2mph past moored boats” etc because there is an implied assumption that without the sign, I wouldn’t slow down. Which is presumptuous and a bit rude. And factually stupid because the correct speed and rpm is very location-dependant. And in particular the stupidity of the signee riles me because in most cases, you can’t actually read these signs until it is far too late to slow down if you hadn’t already done so. It’s all part of people feeling empowered to tell other random people they’ve never met, what to do and how to conduct themselves, without even first having the decency to see how they are going to conduct themselves. Control freakery par excellence.

Today’s sign on a moored boat took the biscuit “What part of SLOW DOWN don’t you understand? Rude arrogant arsehole. Unfortunately this boat was in a line of other moored boats, otherwise I’d have reversed back and passed at normal cruising speed.

Does anyone on here have a “slow down” type sign on their boat? Go on, be honest! And if so, have you weighed up the effectiveness of the sign (which I strongly suspect is zero, since anyone who doesn’t think it appropriate to slow down isn’t going to do so because of a sign, even if they could read it in time) vs how much of a control freak arseshole twat it makes you look?