I think he wants to limit the max. raffles so everybody has a fair chance of winning.
IMHO every on ehas a fair chance if there will be 50 tickets max and not more. so everyone knows his chance. if I want to buy one ticket only I have my fair chance even if some one will buy 10 tickets as long the 50 tickets are in place.
a, yes of course when 50 tickets will be sold ... I wont sell 51st, 52nd ticket ... when 50 are sold then winning ticket will be chosen.
b, I dont think it is necessary to have rule "minimum 25 posts" to avoid multiple nicknames from 1 real user. Because If someone buys 5 ticket he has 5 times bigger chance to win, but he also spent 5x0.01 btc .. so his odds are same as for 1 ticket.
As I mentioned above, I am afraid that there wont be 50 unique users who would like to enter raffle so I wont get 50 tickets sold, therefore I would like to set rule that 1 user can buy up to 5 tickets. I would set it to 10 but you wanted 5 so .. lets keep it at 5.
Everyone who buys 1 ticket has right to choose 1 number between 1- 100 ... if you buy 5 ticket you can choose 5 numbers, so odds are same. (About magic number please see my first post of this thread)
So user who buys 1 ticket doesn't have to be worried he has lower chance to win that user who bought 5 tickets. Odds are same .. ok ?
Any other ideas ?