Well yes and no, I'd say. Of course if you don't like it don't listen to it, and try not to get too frustrated about it. That being said, there's nothing wrong with a healthy discussion, right?
When it comes to the "comedy/joke" type of projects, I take it it's not the fact that they exist that frustrates some people, but the fact that they are pushing other "serious" artists aside, right? I personally haven't listened to Gloryhammer(are they good?). Mainly because I feel it's not my type of band. I won't listen to a band just because one of the members has made a name of himself/herself, when it comes to new projects at least. I guess this is what is happening with some bands, thus creating an "elite" and fewer names in the music industry. But in the end it's the consumers that hold the power, and our money that makes the music industry what it is. Maybe this "crowdsourcing" can change this and eliminating the elite, altough I don't know, is it a big thing? Is it growing? With the internet and all, more people get the chance to share their art, and crowdsourcing or something alike seems to me to be a good idea for more independent music to appear on the market.