Easy D: Why Trump's tweet was no accident

I'm not sure Scott Adams will weigh in on this, but I will.

Trump has a long history of being pro-LGBT, the closest he's ever some to being anti-LGBT was when he said Gay Marriage should be done by all 50 states of their own volition, but that was more stupid than anti-gay.  Still, he's been branded a homophobe for:

-Running as a republican
--Having to work with people less pro-LGBT than him as a result.
-Being stupid and expecting the States to all legalize Gay Marriage on their own.

You might recognize this as confirmation bias, and unfortunately, he's also gotten little credit for the following:

-Opposing the NC Bathroom bill.
-Praising LGBT rights at the convention.
-Advocating that LGBT people be protected by the 1964 Civil Rights Act.
-Refusing to repeal Obama's pro-LGBT Executive Order.

So, what does this have to do with "Easy D"?  Well, I only know of one meaning for that, as do most people on Twitter.  Suffice to say, he intentionally made himself the butt of a gay joke, makes him look less homophobic.  Smart play.