>>66622 (OP)
Secondaries are nothing new, I don't care if there are a few more now.
>used cirno as their new maymay mascot
Cirno being a meme is quite old news, don't you think?
>made Touhou mainstream
Highly doubtable. They may have made it bit more popular, but mainstream? Come on.
>dozens of faggots
Is this what you meant by "mainstream"? Hundred, maybe two hundred guys? That's nothing.
>joined Touhou groups on steam
I don't care.
>changed their avatars as cirno
I don't care.
>used Touhou series to show themselves "elitists"
I don't understand and I don't care.
What do you mean by them "showing themselves elitist". I don't get it. Additionally, why can't you just ignore them, do they send letters directly to you, showing their superiority or something?
Or do you frequent the board you proclaimed "halfchan's worst one"? I don't really care what places on the Internet you visit, but if what I proposed is the case, the problem you have may very well just be a local thing, speciffic for that board. If they consider themselves better than you, just out-elit them with your scores or something. You might also leave, no one keeps you there, I don't think. Now, I may be incorrect in my assumption, but that advice I gave you still applies, wherever you have the problem.
Just grow some balls dammit.