Same issue as "what happens if someone locks their bike next to mine and they are dumb enough to put their lock through my bike".
You'd have to assume that anyone who double parks on the same post with a lock like this probably isn't smart enough to ride the bike in the first place.
The actual question should be "what happens when there are too many people using these locks so no-one can find any places to use it?"
> You'd have to assume that anyone who double parks on the same post with a lock like this probably isn't smart enough to ride the bike in the first place.
Such thinking is exactly the sort that is guaranteed to end up with your bike stuck up a lamp post due to a double parking incident ;)
(it doesn't quite fit, but the spirit of "Foolproof systems do not take into account the ingenuity of fools" applies)
You'd have to assume that anyone who double parks on the same post with a lock like this probably isn't smart enough to ride the bike in the first place.
The actual question should be "what happens when there are too many people using these locks so no-one can find any places to use it?"