We have a plague of non-legal, unenforceable "cyclists dismount" signs. These range from 'must dismount' to 'please dismount' and are found where MUPs intersect roads, on long MUP bridges and on boardwalks which are part of an MUP. While they may indicate that special attention is required, they seem mostly to be erected as a kneejerk CYA gesture.
I universally ignore these signs though I do slow down, defer to pedestrians, avoid my bell and try to be extra cautious. Getting off your bike or walking is a real buzz-kill and seems pointless.
Normally there is no issue but yesterday three concerned citizens of the busybody persuasion took it upon themselves to lecture me on my transgressions. One old lady stopped me in the middle of a boardwalk to ask if I can read (yes, I assured her, I was consciously ignoring a stupid sign), a man out with his family carefully blocked the way and asked if I was walking when I requested to get by, and an old pony-tailed dude with a cane stood at the bike path entrance of his cul-de-sac lecturing non-dismountng cyclists and taking pictures, apparently to post for online shaming.
These signs seem to work best as creators of conflict. Are they common?