"Let your speech always be with grace, seasoned with salt, that you may know how you ought to answer each one."--Colossians 4:6, NKJV.
In this post, h4rr4r wrote in a reply to a post by roman_mir:
SEAT the word you wanted was SEAT!
Sit is something you do in a seat. If this is some sort of non-american english, than deal with my correction as slashdot is an American site.
It appears roman_mir is not a native English speaker. Through the "Homepage" link in his profile, I found what appears to be his user page on Mozdev. Roman Mironenko's native language appears not to even be written with Latin letters.
On Slashdot and other web forums, a lot of people reply to comments just to correct the grammar, usage, or mechanics. It's more polite to phrase your correction as a throwaway bit at the beginning of your comment and then, with that out of the way, proceed to make a thoughtful reply to the comment's topic. This way, your comment is more likely to be seen as a sincere attempt to build another user up, rather than the sort of abrasive and inconsiderate personal attack on one's intelligence that has caused people to associate corrections with National Socialism.