Apologies to bring this up again, but after reading this article, I felt that some words of wisdom was required to all parties involved.
I think that you could have assisted a little more Dmitry, but only by re-iterating to create the SWAP, you did point the person in the correct direction and it was perfectly within scope, perhaps don’t bite to the tune of the next keyboard warrior .
As for everyone else, I think that by suggesting Dmitry’s answer was all for money taking or being short and cold, how helpful was your answers to the original question? NONE. Instead of targeting Dmitry because he was able to make some money (If you’re good at something, never do it for free (A very good Batman quote, and I stand by this)), why didn’t you yourselves offer advice? Keyboard warriors.