I know that eyeballing isn't the most efficient statistical analysis tool, but I can say with almost absolute certainty that this is wrong. I get plenty of skillups even for completely random warps and teleports or self-buffs without regard for skillups. Push whatever button you want to, I can not comprehend what was going on there. I can't prove what skill I had back then but I can show you screenshots of capped skills right now and I was 30 RDM just this Wednesday. Whether you believe it or not is up to you, I find your story equally unbelievable. Either you can't judge the flow of time correctly or you just did something very wrong.
I also capped enhancing magic easily on my main character btw, that's two characters with capped skill. Summoning, on the other hand, took me weeks, and I actually gave up at one point because it kept me from playing other things. In the end I resumed it and finally managed to cap it. So again, are you talking about something else?