Personally, I think the issue is trying encouraging different types of players to work together where they really need to be divided.
Example 1: the duty roulette is a great idea, but bring it's own issues. The benefit is that it keeps the story mode and early level dungeons alive for new players even when most of the community has passed that content, so at least you have someone to play with. The issue however is that new and inexperienced players are forced to rush story mode dungeons (especially lvl50) or get shouted at for making mistakes, because naturally many players wanna progress as quick as possible and want those daily fast tomes.
Now that's an issue but not sure of solution - If you offer no reward for re-running old content, new players will struggle to get a group. If you do offer any worthwhile reward then players will come, but will their goals will often be far different to the new player, causing frustration on one side and pressure on the other. I hope some players will learn to understand why the duty roulette exists in the first place and do the job they are being paid for (in bonus tomes) - to support new / inexperienced players who can't otherwise get a group (and don't presume people are happy to be carried through - some people don't just play for the completion / reward). That said, this understandably won't happen because it's arguable the new players are a minority and should get their own group, and many players care about their own goal and not other peoples (why should they).
Example 2: Correct me if I'm wrong (I haven't reached crystal tower yet but have read about and dread it). The Crystal Tower REQUIRES you to play with 16 random players (minimum). I really don't understand the reason for this requirement but it bothers me a great deal. Casual and hardcore players (and every variation) will inevitably be forced to work together. With conflicting experience levels and goals of course there will be friction and why should either group sacrifice their own objective (be it a quick run or slow and easy).
Perhaps some casual / hardcore check box on the duty finder would help like-minded players find each other? If you tick casual there's NO excuse to rush players or get angry about mistakes. If you tick hardcore there's no excuse for mistakes and inexperience, so expect annoyance or a kick if you're not up to par.
Personally, I've decided to quit duty finder, and use the party finder exclusively, setting criteria as slow and easy, newcomers welcome, no cutscene skipping, etc. I thought it was a good plan but to my surprise casual players don't seem to have an interest in slow runs. Perhaps they don't want to sacrifice the roulette bonus tomes and would rather face the inevitable abuse from PUGs? Perhaps they simply don't feel they should have to? Perhaps from experience they gave up on the party finder (I spent over three hours waiting for a casual group for Pharos Sirius on Saturday without luck)?
If you are sick of the stress in end game content and don't mind failing content repeatedly so long as the group is nice, please check out my thread and contact me - http://forum.square-enix.com/ffxiv/t...-slow-and-easy