This is one of those bets that could happen very quickly or be impossible to hit. 500x is not a common winning and people who bet minimum 100 satoshi could go over 1 bitcoin without winning a single time or they could do like a few and still win. I think this one doesn't bring a positive house edge, I need to calculate the house edge of limbo and need to calculate possibility of hitting 500x and figure out how much it would cost on house edge plus possibility. Without that knowledge you can't really get to see if it is profitable to try this out or not.
The house edge on the limbo game is 1%. It's not profitable in the long run but as you've said there's possibilities where anyone could win it in seconds or hours or never during their session. It may seem uncommon to win on 500x but if you look at their thread a lot of users have won. Several months ago they have a dice challenge on telegram, the multiplier needed for the challenge was 9900x and it was cleared quickly.
Sure it's profitable you just have to beat the house edge by profiting more than 1%
Also we offer you way more than 1% from our giveaways and bonuses
❗️
RACE ALERT ❗
There's a $1000 race starting in just over 45 minutes!
For more race alerts, be sure to join our Races channel on
Telegram:
http://bit.ly/2GWW6EB