It's worth noting that the total number of lottery tickets in the weekly lotteries has become noticeably lower in recent weeks than it was 5-6 months ago. This indicates that the activity on the freebitcoin site has dropped,
You are right about the decrease in total number of tickets and less interest in freebitco, but you should consider the increase in bitcoin price too.
The higher the bitcoin price is, the higher the cost to get lottery tickets through wagering.