From Reddit: NO level sync when entering a dungeon with less that required players!

[Nikita]

Players Need Incentive!!! I cannot stress that enough. The majority of the playerbase will not opt to level syncing if the gain is the same as doing it with max lvl/ilvl... The "challenge" for the sake of a "challenge" is not enough. With overcoming a challenge, players want to see the fruits of their labor rewarded. No one cares about bragging rights. You might as well not even implement the lvl sync feature...

Players don't need incentive. This is old content. If you want a challenge, there is a plethora of new content. The only reason they're even keeping the level sync as an option is for people who whine about nerfs.

What bragging rights could you possibly get out of these dungeons other than having run them when they were fresh? They're not hard to begin with. People need to get a grip, seriously.