On TV Tropes they call it Hype Aversion

https://en.wikipedia.org/wiki/Reactance_(psychology)

In psychology, reactance is an unpleasant motivational reaction to offers, persons, rules, regulations, advice, recommendations, information, and messages that are perceived to threaten or eliminate specific behavioral freedoms. Reactance occurs when an individual feels that an agent is attempting to limit their choice of response or range of alternatives.

Reactance can occur when someone is heavily pressured into accepting a certain view or attitude. Reactance can encourage an individual to adopt or strengthen a view or attitude which is indeed contrary to that which was intended — which is to say, to a response of noncompliance — and can also increase resistance to persuasion…

Heard this referred to as The Charizard Effect https://www.tumblr.com/blxnc/803590785999257600/making-this-term-has-done-numbers-for-me-being

This is a phenomenon I have observed and talked about so often but never heard a name for. Marketing is malign bullshit and they're using it in a kind of 'washing' technique to try to cover up how obviously shitty the thing is so... 'shitwashing?' 'Diarrhoeawashing?'

I think the word you're looking for is "overexposed" or sometimes "overplayed"

I know exactly what you mean. Back in college they tried so hard for everyone to join the study association, that any intention I had to join vanished since it felt so shoved down my throat

You mean the "Princess Di" effect? If I have to hear about poor brave and valiant her or see one more picture of poor poor her peeking up from under that 5lb swoop of bangs she hid behind I. Will. Scream. Married Royal and Rich. Had problems with the in-laws and that Camilla-datin' husband. Shit happens. At least she didn't have to work at Dollar General to make ends meet.

I don't know of a term. Maybe slopped out?

I get this a lot too. It's the same reason people hate on pop stars.

When you can't go 10 minutes without hearing a song by or news about Taylor Swift or Justin Bieber, (Sorry, I'm old so those are the freshest examples I can think of) you just can't help but develop a negative connotation with their name, for really no reason at all.

Sure, you might not like the music, but that's no reason to actively hate on them. For me, it feels like the more other people love them, the more I HAVE to hate them just to balance out the universe or something, but logically, it makes no sense and I've tried to actively stop doing that over the past few years.

Snob Effect in economics. The more popular something is, someone is less inclined to want to consume it.

A semi-opposite is the Veblen Effect, attracting people to more popular things or pricier things.

It’s the reason I hate most pop music and their performers….. but I never heard a term for it

Nickleback Effect.

no idea but I completely feel you. Man election time sucks and its like dudes. I made my decision before you sent out fliers. At least in most cases.

yes , with current trump, gop news. its by design as part of the strategy, to flood the zone to make people not pay attention to the news.

Burnout.