Pfft, regardless of the situation, "nice guy" neckbearder's can get girlfriends/boyfriends, I should know, I've dated two. - Granted only one was a brony :B
But in all seriousness, stereotypes do come from valid truths, this has already probably been mentioned though, there is a portion of people in the fandom who fit certain stereotypes, it's a fact of life! You shouldn't put too too much thought into it honestly, You shouldn't hang out with people who will judge you based on your preferences...Unless you take pleasure in killing real people or committing other crimes, in which case you should hang out with those people because they might lead you on the track back to sanity. :B //two cents
On a side note, the stereotypes of bronies wearing fedora's is more common, since I went to the EQ film and saw multiple bronies possessing those hat types. XD