For those who don't know:
You could only raise the disposition of the NPC to an individual limit by using the minigame, for everything beyond you needed to pay him/her, but by wearing a weapon and temporarily decreasing his/her disposition to you, you could avoid that because after sheathing the weapon the NPC's disposition raised far beyond the limit offering you options that shouldn't be obtained by now.
--> FAIL!
For me the whole system was crap - hope Bethesda is coming with a new one - Speechcraft was worth a Mudcrab and the related attribute too, but the glitch - described above - was just a mistake which I don't want to return. Maybe they could make a system where the disposition is based on what you choose to say - there were no use in differnt options anyway.
Post your opinions and correct me if a new system is already confirmed. Im sorry for my badass english.
EDIT:
Here I came up with an idea of mine
Cool this topic got so much response. I would prefer a system where the npc's disposition depends on choices you make while talking to him. Whereby characters with low skill in speechcraft will get punished very hard for choosing the wrong options. More skilled player will get less punished and maybe have more options or maybe some kind of systems that allows them to reckognize better which options are good. That makes sense for me because a person with good rhetorical skills should get better out of the situation of telling a joke too a humourless person or threatinig the wrong person.
Also the player skills - ! not the player character skills ! - should be implemented.
The answer-options should be reasonable that means by knowing the npc well you should work out the right answers. Just as an example: If there are maybe for ways too talk to an npc (to be a slimy, to be threatening, to be bragging and to be respectfull) the right choice should be matching the npc. If you try to threaten the heavy-armor orc trader who trains two-handed weapons, he should say something like: "Get the [censored] out of here and if you try that one more time I will wipe the floor with your skinny ass" and then the conversation should break and he murmurs: "I've sliced heavy Trolls with one hand crushed fury mages with the other when you were even born."
His disposition should sink to the same floor which should be wiped with you. The basic disposition should depend on race, faction and faveors/quests you've done for him or his faction/guild maybe on your fame also. I know there are some flaws especially if you lay again and know the right answers already but then it's always easier the second time and I think you get the core idea of my concept.
Would that be cool What do You Think???