Grammar pet peeves

What irritates you when it comes to grammar usage, especially on the Internet? Whether it's missed punctuation, bad capitalizations, or just weird habits, post them here!

I'll start.

It really annoys me when people make a grammar mistake and correct it, but only correct the mistake. For example...

"I'm taking the dpg out"

"*o"

And, this, as well:

"I'm taking the dg out"

"*o"

That irritates me, a lot.

Justice will prevail and all that stuff, right?

your ≠ you're

Wow that was almost funny

text talk being used in serious conversations

Growing old and dying is what gives meaning and beauty to the fleeting span of a human life.

Using "lie" rather than "lay" and vice versa

Justice will prevail and all that stuff, right?