For not having a trace on the blockchain, however, this needs to be fixed:
as of now, all payouts are mostly done from the same address
I just want to point out that you are asking for security through obscurity. Multiple payout addresses only add obfuscation, not any real security. Anyone looking to find out these addresses need only add their own coins to the pool and follow the trail. Maybe they won't find every thread, but there is no additional guarantee of anything. The weak point is still the service provider.