I just wanted to clarify what a deadline is, what an estimate is, and the difference between the two. But since we are talking about deadlines, I am not saying that I won't break any in the future. That would be simply dishonest to promise, not to mention just unrealistic, considering the nature of one-man/spare time game development. But what I can promise is that I will always try my best not to, even if it means going on prolonged crunches - as I did in the past.
And since SP will celebrate its first year soon, and no deadline has been broken yet, I say that with confidence!
SP is here to stay. I already have the whole story prepared, not to mention that developing the game is a dear hobby of mine!
PS: I very much appreciate the kind words from you all! Thank you!