We have talked this many times and that is because we have a user base here of near 50 million users,so the majority of the users have low number of tickets so that is why we have seen so much commonly such happenings and I am not surprised anymore.I never spend a single satoshi anymore for a lottery ticket except the ones I keep winning (which I don't want) from the WoF spins that I have as a premium member.
You are right, I did not think about it that way - that so many (maybe even majority) of users has so little lottery tickets.
On the other hand I assume that many users (but that's the fact Team must confirm) are registered for daily newsletter, so they receive at least one free WOF, which would statistically give 100-150 lottery tickets weekly (assuming 1/3 of 7 spins gives basic win, nowadays it is 50 tickets). It would mean that that user the most probably did not execute his rolls.