That said, Mike's comment was a little rough.
A little rough, it was completely inappropriate, rude and shameful.
After going months without a response from YoYoGames, the OP can hardly be blamed for not responding to Mike immediately.
Why does Mike, or you have any expectation of being replied to at all?
The person came to these forums, asked a question and was provided an authoritative answer. There was no longer a need for the OP to come back to see some follow up two days later? The OP had no expectation of having either of his questions answered here and the rules of the forums make it clear that these forums are not for YYGs support. So once again, why does Mike have an expectation that he come back?
The OP asked a question, was ignored for months.
The OP asked another question, was ignored for a week.
The OP created an account for the sole purpose of determining if there was a better place to get a response.
The OP was provided an answer.
Mike had no business expecting him to come back to followup on something that had been answered, and certainly had no business demeaning him and treating him as being unimportant because he didn't. Especially after being blown off for a few months already.
If Mike was going to be "a little rough" it should have been targeted internally and not at the OP.