I just deposited a small amount and won $500 and it was possible to withdraw.

It is interesting to see the experience you shared earlier, there was doubt about the free bet promo but the withdrawal actually worked out fine. What made that opinion change?
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This situation once again shows just how important marketing is here. I used to bet a lot on Sportsbet, but now I don't even think about opening that site. There are many new sites and I prefer them. Sites that ignore Bitcointalk have very little chance of success. There may not be a huge number of users here, but there are a lot of people reading and most of the bettors here are high profile users. I'm sure losing such a market has had a negative impact on Sportsbet, but it was their choice.
Some people may still think this site is good for betting, but some members here are not so interested anymore because the promo is not as good as before. In the past, many people played here mainly because there were a lot of promos and the community was solid. It is true that good marketing helps bring new players and keep old ones playing. But since their market is not only on this forum, this may not be a big problem for their whole business.