Why WordPress?
It is easy to use and – in newer versions – reasonably secure. it might be a little overkill, but why write something yourself if someone else already did it (and you are happy enough with the result)?

 Why was my comment not published? 
see comment policy

Why does project xy not work (for me)?
 Where can I report a bug in a project?
Please post a comment on the page of the project.

What is up with the mixing of languages on this site?
My native language is German, but as I did not want to exclude pretty much the whole world from reading I mainly write in English. But if I think that a post or page will mainly interest German speaking people, I will write in German.
Furthermore, I will try to write the most interesting pages in English as well as in German.