To help others through Main Scenario?
Ugh... just reading that hurt my head. Exactly why would you think you should be allowed to power level? What developer in their right mind would think to encourage that? let alone ones that work on a MMO.
"Gee, they want to burn through even more of our content and quicker? Sure, we didn't need his money anyway!"
Yes, but it would seem all the people who like just running the first rooms of various dungeons are going to be out of luck for that particular power leveling tactic. Which will make a lot of people happy since they'll get full runs for story, which was becoming a real problem with some dungeons.
How else do you get into a dungeon, other than by duty finder???
Generally speaking the term 'DF' is used to refer to searching for a random group while PF (party finder) is used for premades. Yeah, not perfect but it's what seems to have been adopted by the majority so let's stop pretending we didn't notice.
In any case doing any non level sync dungeon outside of roulettes will not grant experience points to players at level 50 or above. Only the higher level dungeons (51+) will grant XP in this way. I notice a lot of people focusing more on terminology in the hopes of pretending this key fact doesn't exist. Sadly, it does.
The first reply is about unsyncing.
He should've mentioned that post 50 ARR dungeons don't give XP, but it's pretty clear that what he was talking about was what was relevant to the OP.
The rest of this thread has been about the OP wanting to power level through older dungeons, such as having a 50+ kill all the lower level mobs and bosses to level someone else.
So this is about power leveling, not the 50 dungeon nerf. When he said "without using duty finder", I'm pretty sure he's talking about the feature to desync and go without the required amount of people judging by the rest of his posts.
Though, those are still tools within the duty finder.
About the 50 dungeons. I don't think it really matters, they're just trying to encourage people to go do HW content rather than power level through speed runs for the first few 50+ levels.