"decompiled code" its hard to proof for DMCA. No, situation was simple, i upload hacked skype binaries in repo for easy distribution. And this is no-no clear case for DMCA takedown. So, it happens.

If you violate their license and use what you learned to make a profit, you're commiting commercial copyright violation. Which is a criminal offense. I don't agree with the law on this matter, but I'd seriously consider getting a lawyer before offering illegal services online.

Also, why not just work on a free software replacement for Skype? That way people could use your code without being threatened by patent suits and other legal arsenal wielded by Microsoft.

"and use what you learned to make a profit"

I am not. Problem was in different case. I should not post patched skype binaries, needed for reverse engineering. And its okay, what i will be shotdown for use it.

You're currently asking for money to be able to do something which is illegal. I'd consider that "making a profit". You may not be selling it directly, but crowd funding is a type of sale.

That is not entirely true for EU:

"...An objective of this exception is to make it possible to connect all components of a computer system, including those of different manufacturers, so that they can work together."

And the US: Sec. 103(f) of the DMCA (17 U.S.C. § 1201 (f)) says that a person who is in legal possession of a program, is permitted to reverse-engineer and circumvent its protection if this is necessary in order to achieve "interoperability" - a term broadly covering other devices and programs being able to interact with it, make use of it, and to use and transfer data to and from it, in useful ways. A limited exemption exists that allows the knowledge thus gained to be shared and used for interoperability purposes.

What did the binary do? Someone could actually publish this via tor + torrent protocol.

I post links on tor... But ints not help much. Against be DMCA'ed.

Then it's not really a free alternative to Skype, though.