Good catch!

Those logos were made by one member of BitShare's decentralized community while another one was attempting to get the trademark approved.  The US government authorities declined to issue a trademark because, in their profound wisdom, the name was "too descriptive".

Apparently they thought it described a company that was in the business "sharing bits".  (I'm not making this up.)  No amount of reasoning by the BitShares lawyers could dynamite them out of that highly insightful position.

So, we need to circle back around and encourage all the independent decentralized users of the BitShares logo to properly reflect the current status.

A bit like herding cats, but that's the price we pay for total decentralization.  Nobody can order anybody to do anything.

Gotta love it!