Ephialtes, i am a 10K Id'er. You can't even IMMAGINE how older players discriminate them.
I am ID 10482. (If I recall right, I haven't played a slight while)
Hilariously enough, I am reverse-discriminated.
People often tell me (Provided they're not idiots who are butthurt because I told them so), that I am "the cool 10k they've seen." Usually on my server where I host my fun builds, or maybe on another server where I'm building something cool or just being a generally respectable person.
The moral here being, just be a decent person and it won't matter.