I wish they had a dislike button. You do realize that the game is centered around being level 50. If it takes longer to get to level 50, then yea some people might be a tad upset especially if they like/want to get multiple 50s. Getting to 50 should be trivial, especially after the first go round. You can continue to chain roulette after the first time, without the bonus of course. If you choose to queue up for any dungeon without using it, you are setting yourself up for 30-60 minute wait times as dps. So, in the mean time what are you going to do? Alright, let's spend levees on grinding levels when they are usually better used on gathering/crafting professions. They are also not finite, you WILL run out at some point. Once you do run out, that option is dry. Next, you can quest..oh wait, getting another class to 50 so there are almost none left. So, ok you can go do some fates....right no one is running them and with scaling running them solo is a waste of time (at the moment, that is subject to change). The problem now is you can't enjoy fates with the scaling and as a dps your only real option is to do fates. If you would be able to have a fate party and queue up for a dungeon, that would be optimal but that option just isn't present. Also, with roulette in certain level ranges you'll get thrown into the primals. First time? Awesome, quick xp boost. Second time? Horrible. 2k xp if someone hasn't done it before, or ~300 otherwise. Get that a couple times in a row and roulette quickly loses it's value. Aside from that, queue times seem to be going up for dps with the roulette (this is just over the course of the week so it could be fluctuating, no clue yet).
Anyone who says the whole lrn2play thing is either a troll or just as bad themselves. Just saying.
Also, you do realize that DF pulls from other servers than your own right? That's why there are clusters. It should be pulling from about 10 different worlds. If queue times at peak hours are still high, then what then? 20-50%? Let's see your maths and not anecdotal information. I could log in one day and get queues of 10 minutes as dps and claim that things has changed, but that would be incorrect.