All of them are based on speculations, but there are no clear connections.
Fact: the signature campaign for sinbad.io was paid with funds coming from Blender's wallet
Coincidence? Blender's admin is so kind that he decided to pay the campaign's participants? Fora service he has nothing to do with?
Blender decided to become a charity person?
Fact 2: almost all of the early incoming TXs to Sinbad were coming from the suspected Blender's wallet.
Suspected, but blockchain forensics companies are rarely wrong
Fact 3: Both use approximatively the same methods to obfuscate their transactions
Fact 4: Both use a ten-digit mixer codes
And for reference, adding a question I asked to @sinbad.io
@Sinbad.io (or Mehdi

)
Hello,
I would like you explain the following point because I find it a bit ambiguous.
Wired.com sent an email to you. Basically, it was to talk about the funds coming from the north korean's hacks. (the $10-15 million sent to your service)
You explained your point of view about privacy, and that was a good one.
But you also said this:
In case I receive a request from [Chainalysis] or any other institution I will investigate the matter and make my opinion on it
To snitch or not to snich.
The sentence I posted basically means you're not sure if you will do it. And you need 'to investigate' to decide if you will do it
The bitcoin mixers industry is based on trust. Am I supposed to trust a service that could potentially report something to LE.
Don't take it wrong, but your opinion is ambiguous