I wonder in what way ECL affects gaining RP exp by the fairy, or rather, what is the equation. I am far from mere curiousity, just surprised that my ECL+5 character recieves 11 per tick, at the same time ECL+2 recieves 13 and ECL+1 recieves... 10.
It's a ratio problem.
15 x (Experience needed to reach next level by a non-ECL character) / (Experience needed to reach your next level at ECL)
Meaning... if you have a +1 ECL character at level 5:
15 x 15000 (Experience needed to get to sixth level) / 21000 (Experience needed to reach 7th character level)
So, the ratio and amount varies not only by your ECL value, but also by your current level.
Ahh, that explains a lot! Thank you.