Wow, I didn't even notice that there was a limit... I wonder if that is why my buff-outs don't seem to be working right. I just thought they didn't show on the screen, but assumed they were still working. Yet another "game rule" that has no warning, explanation, or even a justification for being limited. It's not like these buffs are super-powerful!
But now I know why my minions seem to randomly despawn, for no reason too! What a horrible system.
Obviously, I second this suggestion and wish to add a "buff-out button", so we can setup a quick top-off of expired buff-potions, without having to stop and drink ten individual potions with two-clicks each, per potion, in the heat of battle. It's as bad as having to select a heal potion, with our armed hand, then ALSO have to click again to drink it, then select the weapon again. Mana and health should have a single-click option to click and drink, without having to switch away from a weapon and then switch back to the weapon again. (I can understand not being able to attack while drinking, but OMG, what a horrible inconvenience using potions is in this game. I need 40 fingers and a safe-house, just to stay alive sometimes!)
I think it has been a lot better since I got my shield upgraded with all the negative buff protections from the ankh thing... (But I use a lot of temp-buffs from fires, the black cat, gnomes which is a "blind luck buff that doesn't show", and heart and star lamps, and my crescent moon charm that turns me into a werewolf/merman. Guess those are knocking my potion buffs off my list too! When I set-up an arena... I SET-UP an arena!)