Other websites found the solution in allowing people to gamble with other currencies. Because, it is very hard for them to manage like 1-2 satoshi bets
In fact it was not making any money for them at all because 1 satoshi betting was nothing more than dust to be honest.
Freebitco.in wasn't like that
They dont have the option to increase it probably. Freebitco.in is a site where newcomer usually come and get their first bitcoin from faucet then proceed to gamble with it. Therefore making it stay at 1 satoshi is probably the only option to encourage more people
newbie to keep on gambling and hoping to increase their ticket through that way
On the same time, that means higher traffic for the site as well which generated better revenue
Either way it is a good site but if you compared the house edge to another site, this is just way higher and that is all