1) Anyone think they are real betting percentages or just made up crap?

2) NBA lines generally do not move all that much, but when a book is getting 75%+ according to their percentages on an nba line why does the line not move at all? This is generally the case for all favorites for the NBA there which would mean larger amounts are blindly bet on the dogs by sharps? Thats hard to believe which then leads me to believe those percentages are bogus.