I believe they lost less than the prize they received, it would not be profitable if they lost more than the prize. And as my own opinion, it is not wagering competition as the winners are not determined by how many btc they have wagered during a week but based on how many spins they made.
But it will be a bit different since this week started as there is a minimum bet amount per spin, unlike the first 4 weeks where there was no minimum bet amount per spin.
They still count the spins less than 0.0002, I tried playing with 0.0001 per spin on fortuneslot and it still gets counted in the leaderboard. They should fix this asap or it won't be fair to everyone.
Nope it is not counted, just asked with Anna on live support and she says that 0.0001bet on fortuneslots is not counted. There is no errors on the systems so nothing to be fixed. So you must be wrong on this imho
Edit :
Maybe she just answered you about the rules not aware of bug? If ralle14 played with 0.0001BTC/spin i don't see the reason why would he say it is counted if it's not.
No, I was clearly asked her about the bug stated by yahoo and she said "NO". I also tried to bet on fortuneslots at the beginning of this week and just tried it again to make sure about it. And the result is that my 0.0001 bet is not counted.