I hope you'll be back to read this anyway. I don't have an answer to your question but I can still help you to find out what the difference is.
First, play a few weeks or months with awesomemod. Note: first with awesomemod. Then remove it and play. You'll notice the difference in a few hours if you pay any attention to anything. Actually, it works so well you might not even see the difference but somehow the gaming experience has turned a little less frustrating.
If you have trouble understanding the manual, maybe you could ask someone to read it with you and explain? After all, supposedly it's a grown-up who develops the mod and writes the manual - and grown-ups tend to use fine words and expressions to show they are somewhat educated.
I think these people are only hostile for the fun of it (I'm sure they have only ran wild with anonymity and aren't quite this way IRL). Don't mind them 'cause you're here for the mods, not making friends.