Why do theist often drop the letter s when referring to atheists?

[RoadRunner79]

I’m horrible at spelling, and I don’t think it’s a big deal to correct if someone is constantly misspelling something. But some make it into a bigger deal than that.

Fair, but it's really hard to come off as sincere over the internet when correcting someone's spelling/grammar since it's so often used as a trolling/insulting tool.  I try to highlight it only when I'm genuinely having trouble understanding the structure/content of a statement.

I had a Pascal programming class in school. My final project was a Yahtzee program with graphics. Since this was week beyond what we where taught; I had to go through line by line with the instructor to show that I didn’t just download it. But I got docked for misspellings in my comments.