I love the idea of no mounts In dungeons, I would also make horse fatigue out of dungeons make it harder to actually run forever with a horse,with fatigue you can have different levels of fatigue depending on mount taming difficulty. Make it so u have to dismount feed horse for fatigue to replenish.
Love no mounts in dungeons for sure. Would love to see actual mount fatigue again and NO ability to refresh that stamina with a verbal command (ie: must actually FEED your mount and/or give it a break).
Also in full agreement there should be no NPCs selling mounts.
I'm a "no mounts" kind of guy, especially after what I've seen on other "popular" servers. The running... my God, the running. It takes about 5-7 minutes to run from Minoc to Britain, another 4-6 from Britain to Trinsic. That's roughly 12-15 minutes cross country. If the Outlands are roughly half the size, I feel like that would mean a run of 6-8 minutes from end to end, which is to say nothing of town to town or friended house to friended house.
The issues I have with mounts is that it's reminicnet of IPY's "novel" idea of having 2 dimensions/rulesets. Your character's effectiveness changes at the flip of a switch as you enter a dungeon. It will change how people build their characters. It would be awkward to "build" a character that excels at outdoor combat, but is limited in effectiveness in dungeons since mounts affect PvP drastically. Furthermore, you can't just "start with mounts for now" and then eliminate them 3 months into the server because of the backlash from established characters whose builds depend on them.
My suggestion would be, dare I say it.... To mimic WoW's mount system in that any any source of damage dismounts you. In that way mounts can be enabled for fast-travel and aesthetics, but not affect PvP or character templates. Perhaps reduce the run speed to be proportional to the world size.