The signature contains information about sponsorship and an extremely accurate advertising slogan of what Jambler essentially is (supply of software with which you can open your own Bitcoin mixer, and the opportunity to make money on short-term investing). This means that Jambler does not provide Mixing services to end clients. This is the same as if it were forbidden to advertise “kitchen knives” on the forum. Jambler is a supermarket where you can buy such a knife, but nothing more. And most importantly... in the form in which it exists now, Jambler existed before the ban, so there is no point in talking about some kind of loophole.