I get what you are sayingI actually misread your previous post.
We all know that bookies are dodgy a.f, usually I'd side with the punters, but in this case the punters have found a clear error in pricing and tried to take advantage of it for a big amount of $.
Arguably though, don't all punters think we have a clear edge on pricing and try to take advantage of it?
I'd say a obvious error is where they get the lines the wrong way around or have a typo around odds.
When a bet is manually accepted and odds continue to be taken despite going down. Looks like mispricing to me.
The reason I argue so strongly on this one, is it opens up a slippery slope when you give the bookmaker even more power to determine when a bet is valid or not.