THE DARK SIDE... only joking - I used Zwift for a couple of months and in fairness Zwift has a lot better interface than bkool, I took part in some of the events (there's loads of them to choose from) which I also thought was good - however the bit that finally broke me was the amount of bullshit you have to put up on their facebook page, a lot of people using dumb trainers with power meters, a lot of people obviously feeling like they can't be honest about their weight or equipment as the numbers were all over the place, I've had people go past me pushing 10watts/kg and holding it for ages... really maybe they should be on the pro-circuit, lol...
Whilst BKOOL is frustrating, the thing that makes it for me is this community. I honestly finish a ride knowing that my position reflects my fitness at that time and I've been beat by someone stronger not by equipment or bullshit.
BKOOL should recognise this group and be very grateful and reward the people that give up a lot of their time to set up & manage the leagues.