[randallsquared]

If you want to fuck off for the next month and you're not on anyone's critical path, that's fine, too.

But if you can do this, maybe they and you will think about whether they need you the month after that, too.

[CamperBob]

If you're doing good and valuable work, and the company acknowledges this, you won't want to vanish for weeks or months at a time.

The overriding goal is to run an outfit where the employees want to be there. If you do that, then vacation-policy abuse will not be a major problem. If you don't, then vacation-policy abuse is the least of your problems.