We got a few search terms with questions in them. I think I answered them in my tanking posts but I thought it might be good to recap it.
The point of them is the difference between a taunt and a forced attack.
“if you have full threat and you taunt wh(at happens?)”
Nothing. You get no more threat and no benefit at all. Oh one thing does happen… if you taunt a lot the target gets a temporary taunt immunity.
“taunt forces them to attack you for how (long?)”
For most taunts, no time at all. You only hold the target for as long as it takes for someone to get 10% more threat than you (melee) or 30% more (ranged). If that happens a nano second later then you drop the target right away. If that takes 3 hours then you hold agro for 3 hours. A different class of ability causes things to attack you for a set period of time. Those are called ‘forced attacks’. I am unaware of any ability that contains BOTH the attributes of a ‘taunt’ and those of a ‘forced attack’
To recap for both of these questions:
A ‘taunt’ bumps you up to 1 higher threat than the highest thing on the targets threat list and then makes it attack you. This is also called ‘bumping to you to the top of the list’ (since you have to actually have 10 or 30% extra to get there manually). So it basically does a ‘forced attack’ but with ZERO time duration. The only thing that forced attack does it make it so you don’t have to have 10% or 30% higher than the next highest critter.
A true ‘forced attack’ does NOT increase your threat. It simply makes the target go after you for a preset period of time. Basically the ‘agro list’ in the critter’s head is suspended for a few seconds and it only cares about you. When that time is up it goes back to whoever is top of the list.
NOTE: They put the micro forced attack on taunts because otherwise they would have had to make you get 130% threat from a taunt. Which would have been over powered.
As I said before I know of no ability that does both a real ‘taunt’ and also an actual ‘forced attack’ that last more than a nano-second. Some abilities do have tip text that makes this misleading. I am looking at you ‘mocking blow’.