I stopped contributing on Stack Exchange sites because I lost trust in SE when they changed the content license (from CC BY-SA 3.0 to CC BY-SA 4.0) for my content that was written before the new ToS were published, and when they didn’t react to questions about this unjustified change.
As Stack Exchange apologized and undid the change now, I’m considering to start contributing again.
YearlingOct 9, 2014
Vox PopuliOct 9, 2013
SuffrageOct 9, 2013
ExplainerSep 30, 2014