These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Friendly Fandoms: Both Austin & Ally and A.N.T. Farm are this to iCarly, despite being on rival networks, have a friendship based around the supporters of the three major canon relationships on the shows, Carly/Freddie, Austin/Ally, and Chyna/Fletcher, Three of them being examples of the Just Friends.
Hollywood Hype Machine: One of the most well known examples. As well as being on these shows, the actors also usually release an album and have a finale movie. Unfortunately, it rarely leads to lasting success outside of Disney (though that seems to be changing now, at least with Selena Gomez and Demi Lovato).
There's also a significant (typically male) older audience as well, ranging from late teens to well over typical college-age. Given what appeals to males in the first place, this can lead to some Unfortunate Implications.