> これは非常に攻撃的なライセンスであり、非常に注意深く読むと、貴方が書いたコードの所有権は貴方にはなく、FSF（Free Software Foundation）が所有しており、商業利用には使用出来ない事を意味します。

まず、たかしかんが言った通り、コードではなく、「GNU一般公衆ライセンス」そのものの著作権がFSFにあるのみ。

こちらも「非常に注意深く読む」とします：

https://www.gnu.org/licenses/gpl-3.0.ja.html

> How to Apply These Terms to Your New Programs
[...]
> To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the “copyright” line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.

事実を捻じ曲げるのはNG。