I recently tweeted about how adding seemingly minor features can unexpectedly snowball in to a significant amount of work. I thought it was worth writing up in...
It also demonstrates how difficult estimating the time and complexity of software development work is. Even though we have years of experience developing Construct ourselves, it's still very difficult to look at even a trivial-looking suggestion and say for sure how long it will take.
Thanks for sharing your experience with us. I guess this feeling of "poor time estimation" wont change ever, no matter how good we become at developing stuff.