Never had any problems. I watch football and basketball games here very often, Sundays, Saturdays, Mondays, Thursdays for example when the games aren't being shown on regular TV. I use this site throughout the NBA, NFL, as well as certain college football games because I don't have cable or satellite and so far as I know I have not picked up any kind of problem/virus/etc.
As far as suitability for children, there is much more MESS on regular TV (with or without cable, etc.,) than I've NEVER seen on this site and like I said (above) I do NOT have cable or satellite so I no longer have any idea what kind of mess they show on those entities. I kicked cable/satellite out of my home over 8 years ago because of their lax and looseness and lewdness in the kinds of programming they promote, and now find the same kind of mess on regular antenna TV. I'm very selective and old-fashioned, AND I'm an old woman, 71 years old, but I've NEVER experienced anything on this site that makes me feel dirty or ashamed that I accidentally saw it then blush and wish I'd never gotten caught up here. I can watch this website with people older or younger than I and not feel compromised. I can speak however for basketball, rugby and football as these are the only sports I watch on this website and I have no complaints. Thank you.
The longer I use WOT the less I pay attention to your warnings. If you are actually trying to help people avoid entering a dangerous, or otherwise unsuitable, site please do something to make your warning system more accurate. It's getting to the point where I barely pay attention to the color of your little circle in my taskbar.
Bovada is a reputable business/site with a longstanding reputation for reliable service.