When I say that this site is primarily for me, then why do I write (mostly) in English, I'm asking myself. Why not Finnish which is my mother tongue?
Answering myself: There are at least two reasons. One is that while I claim to write for myself, it's not really the truth, the whole truth, and nothing but the truth. When I write in English, I hope that more people have a chance to read this. I'm especially thinking about my friends in the US. Not that I knew why anyone would read this, but just in case.
Another, more rational reason is that I want to practice expressing myself in English. Now that I don't live in the US any more and I don't use English as my primary language, I'm a bit worried that my English is deteriorating (for example I had to look up 'deteriorating' in the dictionary). At work I get to write technical documents in English, but writing this kind of free-form musing is very different from it.
So, English it is. Except in the 'Moments' category, which really is my moblog, and which I write on my mobile phone. The phone has the T9 predictive text input system, which does support both English and Finnish. But because I send the text messages for my friends in Finnish, I normally use Finnish as the input language and so far it has been too much effort to switch the language just for typing in a random moblog sentence and then switch back.