Ultima Online Five on Friday Q&A

This week's "Five on Friday" Q&A feature on the official Ultima Online website covers questions about weapon dyes, the Gargoyle's throwing ability, and more.
Why is it that formerly high-level creatures, like reapers and gargoyles are no longer a challenge to a high-level mage, when before they were considerably challenging?

Since UO was launched, the overall power of the average player has increased compared to the original monsters. We've talked about rebalancing all monsters to match the current state of UO, but one downside to that would be that it would change many player's favorite hunting spots. That could be perceived as a nerf, so it is something we would have to think about beforehand. Do you think that the older monsters and creatures should be buffed up to make them more challenging? We'd like to hear why or why not.