I'm not a hipster, but I did write a thesis paper on hipsters.
It's disheartening when this series of events happens in this order...
1. You find an underground artist, and enjoy them for a year +
2. This band gets signed to a major label and gets big promo (no problem here, good for them! Yay!)
3. Everyone knows about said artist now (also, yay cool!)
4. Mainstream fans now love said artist, and claim to have been listening to them since they first formed (Boo! You are a liar you don't know them! What the hell bro?)
It's this false ownership that really grinds my gears, and probably yours too. But, it is pretty much unavoidable.