(Primary author, here.)

This is a good point, and obviously there's a lot of tension between phyggish meme-sharing/codewords and a desire to be more inclusive and not so scary. An earlier draft actually made it an explicit point to talk about the perception of phyg, as I think it's one of the biggest PR issues we have.

The pamphlet was written to try and help people not feel so overwhelmed by coming into a space so loaded down with jargon, but you're right that it perpetuates the problem. I encourage people to copy and edit this, perhaps tailoring it to the level of jargon and the specific goals of your group.

Here's a link to a non-pdf version.