Yes I did read the post about energy potions before writing this;
The first part of my post is more one of 'cosmetic convenience.' It'd be a lot tidier if potions stacked in one slot rather than lots of 5. Or at least make them stack to lots of 20 just to keep them localized in your inventory better. Nothing irritates me more than seeing them scattered across 4 lots of inventory space. Defiler has a mod option to infinitely stack them, it's a similar result to what I'm talking about.
The next part of my post deals with the use and availability of potions, this can apply to energy as well but I'm looking more at health here. I have two arguments to make:
Potions drop from most packs of monsters outside or in dungeons. They drop from chests and treasure containers. You get them from quests, and they're available from merchants in any city or town in infinite supply. My argument is they're too readily available and make the game too easy. I seldom ever need to buy them from merchants so many drop in the world, and the ones I collect I don't need to use that often, maybe the odd boss fight or if I get several packs of mobs (in which case I should retreat or use some strategy to work around the problem.)
a) eliminate potions from merchants.
b) eliminate potions from monsters and treasure drops.
c) limit the number a merchant can sell each day/night cycle.
d) limit the number a player can carry at any one time.
* I don't think any of these are feasible or practical solutions, but when you're presenting an argument I think it's good to list as many ideas as possible to show you've given the subject some thought.
2) They nullify the immediate benefits of healing abilities and stats attributed to restoration
I've played a healing role and a tanking role, and in both cases health potions have ruined the fun. When I cast a heal on my friends they've already popped a health potion, making my powerful heal mostly worthless. As a tank it's all too tempting to do the same thing. Assign the right mouse button to health potions and carry 50 or so from one town to the next pretty much makes me invulnerable.
e) increase the cooldown from 6 seconds to maybe 30 or more. Potions will still be useful, but they won't let you stand defiantly in one spot until you've killed everything. This could also apply to energy potions.
* I think this has more merit because you have full control over the duration and strength of a potion's effects. 30 is just an arbitrary number I came up with, please use a lesser number if you think that's too long.
Let's not forget the usefulness of +Health Regeneration and life stealing stats. If you equip your character properly, be it heavy dps to deal with threats quickly, or the aforementioned stats to soak up the damage long enough to kill them off one by one it is possible to play without using potions every six seconds in combat.
Even if no one cares for these suggestions I'll be making a mod that tries each of the ideas out, starting with increasing the cooldown.
* Comments added 30.09.09 for clarification. Original text is unchanged.