Miley has a TCR-like show in which her character sometimes uses the stage name of Hannah Montana. I haven't bothered working out all the details, but "Hannah" definitely leaves positive reviews on Miley's merchandise on Amazon, among other things.

Saying "same-sex couples are not inherently worse at child-rearing than mixed-sex couples" is a perfectly decent argument. Not that Jon lays it out that logically...but to be fair, he's a drunk teenager being morose about his sexuality and family, not a sober teenager defending a point in debate club.

As for Jon the next morning, keep in mind that he's going to be reluctant to talk about anything embarrassing, especially when Tucker and Jimmy are in the room...