1. Being "victimized" by faster/stronger monsters is generally a sign that you are not yet fit for that particular map.
2. An "Increase Walking Speed" potion would also conflict with "Decrease Agi" which is a skill used by both players and monsters. It would further add to the natural imbalance of Gravity's Ragnarok Online.
3. All of the warps are easy to get, and fly wings/creamy card make it just that much easier.
4. Most classes (sorry mage class) has a skill that allows for faster movement, often useful in situations as you are stating. Thief has Backslide, TK has Running and so on. Just more imbalance as those skills would end up being less effective.
5. Lastly, how someone talks or refers to them self is nothing that you should ever criticize about, or even care about for that matter. Ms. Namin? talks how she does because of the simple fact that she IS Namin? and nobody else.