This right here is what you run into EVERYWHERE you go. At some point, people are going to want to create a somewhat "exclusive" group. This is an unavoidable thing. You see it in car clubs, social clubs, online gaming, etc. It's nice to have a wide range of involvement for a hobby, and it can work......but it only works when everyone knows where they belong in the line. I don't have a problem with 14 and 15 second cars necessarily.....they can run, post threads, post up videos, etc. What is ANNOYING, is when those fuckers try to call out the cars that make twice as much horsepower.....but want them to handicap their car in one way or another. These are the situations that cause drama for several reasons. For one, you have varying opinions on how "legit" the callout is. Secondly, for the faster car.....the whole situation is pretty much a waste. The faster car can either waste his gas to meet up with someone he's 2 seconds faster than, or that same guy can waste his gas by going and doing some fucked up race (unhooking NOS, changing boost settings, coming on tires they don't race on, etc). It's one thing if you're at a meet and a buddy wants to race just for fun with some silly circumstances, but to actually be CALLED OUT under these circumstances is just simply annoying far more often than it is appealing.
The nature of this hobby, if you are the least bit competitive at all, is to beat the faster vehicle. Because of that, the faster cars are the ones who are getting frustrated, because they don't want to be bothered by the slower guys. The slower guys have NOTHING to lose, so they often times don't think there's a "problem" with the callouts.
Thing is, once you know what your car is capable of (you can even get an idea before you race) you need to find your place and stay there. If people would just stop bothering others that are out of their league, then I think everyone would be happier.