Thing I've always wondered: do Marvel or DC ever discourage their writers from making gay ships canon? Like some ""bromances"" I look at and I just can't understand why they're not canon, unless the writer was forced to censor it.

Anything considered a big development in any key DC or Marvel character is going to get looked at by editorial. In my case, I don’t recall anyone actively discouraging me, but a couple times it’s had to go up the ladder a bit. DC is actually pretty great on this stuff, as far as I have experienced. I don’t know about Marvel as much but they seem to be making strides.