Q: Why does it irk me so much when random strangers PM me using a lot of texting language and abbreviations?

A: Because I find it highly annoying that for your first impression with me, you don't even speak proper English and you're too lazy to fully spell out "please," which leads me to the conclusion that you're a complete dumbass that doesn't know shit about talking to people you don't even know that well using manners~!