Goru has explained it pretty well.
And as you can see, even with that, questions can arise. I am sure most people can find exceptions to everything. I did because I do like Goru's work and want to use some of it (like MakeIt).
I also like Elgar's work. I personally do not UCM. A number of years ago, I did, I used instant OG to make a new mage a level 25 mage. Regretted it also (yes, he made all of these levels quickly, but lost something along the way, the skill specific XP to melee, missle and magic D). However, I never rerolled him and still play him to this day. He is my Buff Bot.
I currently have none of the IT plugins loaded because I am currently testing EL Tank. Specifically, buf bot and El Track features. And I might add, I like them. I prefer EL Track over FindIt.
However, I am tending to lean towards Castaway. I am still having some problems but can not pin them down with just EL tank loaded. I dont crash, computer hangs and requires reset to get me out. Seems random so do not have anything to report to Elgar for him to focus on.
So in the long run, the plugins people use are going to be based on what they like in a plugin. But a modifier is in there, Goru has set a limitation and he is the owner (irrespective of freeware, shareware, whatever) and I will honor his limitations and feel all other should also. Than again, I do not care for UCMing either.
One thing I have noticed, is that there are a number of people that could careless what Goru stipulates about the use of his work in this thread. Unfortunately, we will always have people that could careless about the rules. If there is no enforcable method or penalty, they will do as they please at the displeasure of the others. So no matter what, there will always be someone that wants to mess things up for everyone else.
My view on what I have seen and my attitude. Or if ya like, my 2 cents worth, that and 3 dollars will get u a cup of coffee.


