What is really nerdy? Excessive obsession over one thing (ex anime) which turns everyone else away and destroys your social life.

Other people use the word to describe someone who they think is smart and it agitates them.

So if anybody calls you nerdy for reading an anime book, they're just generalizing stereotypes, which is what breaks off certain items and subjects from the "acceptable" social world and feeds it to the nerds, making it exceptionally difficult to still be involved with that thing and not be vulnerable to prejudice. Thus, in order to stop this mad process of inspecting and rejecting, we should not care about the obsessions of uninvolved persons (in other words, don't stick your nose in other peoples' business).

In order to make this more clear, and to bring out the silliness of it all, what would happen if so called "nerds" became involved with football? What if they all suddenly started showing up at (North American) football games, and trying out for teams, and so on and so forth? With one or two, no doubt the jocks would tease and abuse them, but if they all started obsessing over football, would that not be grounds to abandon the sport? Yes it would, and anybody packing a pigskin would be socially ostracized.

Of course this wouldn't happen. It's an exaggeration. But isn't it logical, due to the previous patterns we've observed? Therefore, in a process which would result in your own undoing should you switch the variables correctly, to put it simply, you shouldn't be doing it. Unfortunately, however important my message might be, it will never be implemented like it should, and silly bias against items which are neutral themselves will continue on widespread.

Or I will eat my hat.