Agree with you re sports betting but I don't bet sports but horses instead, and its a totally different ball game a lot more room for margin of error. The betting line mistakes made by bookmakers and sports bettors is minuscule compared to horse racing, as i mentioned in the other thread a horse these days will open say decimal $3 get backed into $1.30 or $1.25 and go back out $3.50 etc in a space of a few hours. Its nothing to also see a horse open $9 and be backed into $2.50. taking into account opening odds put out by bookmakers for a race average 130. So when a error like this is made the market takes a massive shuffle.
These errors just don't happen in sports betting and why asked the original thread question in this forum as some of you guys seem to be pretty clever especially re wagering.