I recently found out that a distant family member may be into Satanism (Celine Dion). Another citizen of KC did the same (Kate Spade). Both of us initially had the same reaction (But they are fine people)... Understand that seeming like fantastic people is the priority of people who are into satanism and organized child abuse. They are philanthropists and humanitarians.

If a person themes their entire business around a popular trope of the cult, they will be interacted with as members of the cult by other members. It is therefore hard to believe that someone flashing all the gang signs would be out of the know... They would, at least, be weirded out by how cult members interact with them (or threaten them out of wearing the gang colors).

It sound weird but this is all very important and very well thought out. And "niceness" is not a good way to judge whether someone is a member of a secret society or cult. You can usually confirm such things over time by looking up friendships or associations with confirmed cult leaders (human aggregators).