Yeah, it is strange, but Episcopalians tolerate it. In a big church you can just blend in and never join and you'll never be approached to join. I had that experience for years too, there was a period I was a closet Episcopalian, similar to what Trump is doing. I could never make myself commit because I didn't like the Church that well to actually join, it was a struggle.
I watched a Lutheran Hour show a year ago about the conversion of a Jewish man to being a Christian. He spent years in an Episcopal church as a guest, just listening to the sermons and liturgy. Finally, someone approached him because he was a regular and asked if he'ld lead a Bible study. He had to inform them he was in fact Jewish and not Christian.
That sums up my experience in the Episcopal Church as well, only I spent less time there. I did get to know the Dean and Canon, probably because I sought some spiritual advice and confession from them. But otherwise nobody approached me.
OTOH, at my Lutheran church, I met the pastor on the first day I visited the church and everybody greeted us warmly.
Episcopalians are good Christians in my experience but they don't like to "get up in your business".