Or, preferrably, work at companies who treat they employees like individuals :)

(on the basis that if they get all the good talent more companies will act like that)

Absolutely, but my point was if you have a relationship with your employer where you feel they are extorting you you should leave and find some place where they aren't.

The employer-side of that exploitation-maneuver would be your boss telling you: "We do not have anything for you to do the next 6 weeks, starting tomorrow. You will not be paid but if you want, you can come back later."

If that happens at your company, go ahead and take your leave. If it does not happen, you may be overplaying your exploitation a little.

This happened to me. I promptly informed them that they hadn't hired me as a contractor, hand't been paying me the rates I demand as a contractor, and bid them farewell.

Why not make it clear when you get hired that you will want 2-3 months vacations every few years?

Back when I was working full-time jobs, I'd tell them up front about the amount of travel I do (and usually they'd see my suntan and hear about whatever trip I just got back from), so they knew what to expect. I've even gone as far as to negotiate away my stock options in exchange for an extra couple weeks vacation each year.

(I wrote the article)

Unless you have an equity stake, like at a startup. Then you're probably just hurting yourself.

There are plenty of non-exploitative work places. At most places I've worked the organization genuinely cared for employees.

There is such a thing as being a dick to an organization that has treated you well.