He just doesn't get it.
Should you spend a few minutes reading up here, you'll discover texting style language is not common nor well received where other posters have been asked not to use it. Sam simply recommended making posts clear and you pounced on him like he insulted you. There were several following posts, mine inclusive, supporting what Sam suggested. I think you may be "bum hurt"? The majority of us don't type with our thumbs and dislike stumbling through cool, "teen speak". Change all references to "u" to "you many contributors" in your friendly post above and it would be accurate.
Now about getting it. Should you come off as a hostile, self-centered jerk, members will not exactly be helpful with your future posts. Get that? Oh, that's right, you don't care. Hmmm, seems totally unproductive now huh?
Anything made can be made Better