Earlier quoted context omitted.
Yes, this is pretty normal; in paid products I even find it's less aggressive than in free things. But I have a hard and frozen shell around my vital organs to just politely and friendly point to the place in queue and where to donate to speed it up. For $10k I will build your cpu temp proc, if that's not an option then it's in pos #17463 of my task list.
Yes. I was developing some open source stuff before venturing to for-profit closed Source Software, and I was surprised that the paying customers were on average much nicer than those who got their stuff for free! Great idea about the priority queue.
this is always true with, at least a great many, people. it's related to choosey-beggar syndrome. it's a bug/glitch/feature in human psychology.
if you ever have the chance to be a property manager, never ever let someone move in a week early or pay a week later for free. never let your rent get drastically below market. when people aren't paying for something, it's incredibly common behavior to stop respecting it. it's like a switch flips and suddenly they are doing you the favor.
that's why in times past, offering or taking "charity" was considered impolite. but making a small excuse might be ok. say someone needs to stay an extra week after their lease was over, but was strapped for cash. instead of saying "sure you can stay one more week", say "well, you'd really be doing me a small favor staying in the place to watch for the extra week since it's empty anyway. how about i discount the rent by 50% for that week and amend the lease to take care of it."