things that makes perl/ruby developers happy發佈於：
- when his/her patches to cpan modules / ruby gems is accepted and released in the very next version. i.e. when his/her name shows up in the changelog of work of others.
- when somebody sends awesome patches for his/her work to be released for the next version. i.e. when he/she put someone's name in the changelog of work of his/her own.
this does feels like a positive feedback loop.