Beware of "Backspaceware"

SubLevel writes "Since conception in 2004, Paint.NET has been generously been offering the software community the taste of successful freeware, by allowing anyone to download and decipher the entire working of their extremely popular photo editing program. As posted in the Official Paint.NET blog by Rick Brewster, "Backspaceware" as he has so coined has become a tremendous issue. "Paint.NET's license is very generous, and I even release the source code. All free of charge. Unfortunately it gets taken advantage of every once in awhile by scum who are trying to profit from the work of others. I like to call this backspaceware*. They download the source code for something, load it up in to Visual Studio (or whatever), hit the backspace key over the software's name and credits, type in a new name and author, and re-release it. They send it to all the download mirror sites, and don't always do a good job covering up their tracks.""

Comments

Not all GPL violations get handled as smoothly

[tepples]

to the solution to your problems. Years ago, I dealt with somebody who backspaced my freepuzzlearena package, which was distributed under GNU GPL version 2 or later. Specifically, he did not "includ[e] an appropriate copyright notice" on the title screen. We cleared it up amicably: he agreed to stop distributing the backspaced version. But not all GPL violations get handled as smoothly as this one was.

Re:Not all GPL violations get handled as smoothly

[j-pimp]

You can sign over your copyright to the EFF (correct me if I'm wrong) and they will defend your code vigorously.

I know the FSF provides this service. I did not know the EFF did.

Source code defined

[tepples]

This is a good reason to implement obfuscated C for things like the program name and author. But obfuscated code is arguably not "source code" as many common copyleft licenses define it. For example, the source code for a work under the GNU General Public License is "the preferred form of the work for making modifications to it". GNU manuals are distributed under the GNU Free Documentation License, which addresses obfuscation more directly: A "Transparent" copy of a document "is suitable for revising the document straightforwardly with generic" software, and "A copy made in an otherwise Transparent file format whose markup, or absence of markup, has been arranged to thwart or discourage subsequent modification by readers is not Transparent."

Re:this happened to me

[psychiccyberfreak]

4. Conveying Verbatim Copies. You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program. You may charge any price or no price for each copy that you convey, and you may offer support or warranty protection for a fee. So in other words you can modify it and sell it, but if it's copywriten under your name and he removed that, then it's breaking the GPL and you can sue him.