Well at least, I didn't start it (for the record: RR said "Free lesson with no obligations", and then said "I dont have the luxury..." and then insulted with "I'm quite glad you didn't come for a free lesson", "people are such scroungers", "you'd have to make some changes before anyone coaches you", and then continued with some curse words after I pinpointed his problem) .
I'm just glad I didn't buy your coaching beforehand... Coaches with tempers aren't very helpful.

Im not a company, I dont really have the luxary to give out lessons to those where there is no chance of them continuing.
Plus, you'd have to make some changes before anyone coaches you.
That's not true. I don't have to make any changes, except to learn more about chess and fix bad chess habits. Perhaps I should also become better at time pressure too, that seems to lead me to problems in some games.
RainbowRising, don't call it free lessons then, from the moment I saw your first post to some random forum dude "I can give you free lessons", I knew it wasn't free. You should call it "Buy an annual contract for 12$ a month, get the first month FREE!"... It's a gimmick, not an actual free lesson. Telling people the pricing on your profile would probably get you more customers too, trust me, I own many businesses, good pricing helps.
And you should really sort out your psychological problem. Just because someone questions you on the guarantee your chess lessons/coaching provides, doesn't mean you should become hostile. Instead you should prove how you can guarantee some improvement, for example, provide examples of students you trained, that would have been very convincing.
I hope this won't anger you in any way, but you've already taken offense from me, so I'm not sure how much worse it can get.