When I have to sign?

No. I'm not here for the money. Please see my contributions friend. I've been a translator here for more than 6 months. I've been translating many projects. You can see my user page. Now also I'm translating the OPEN IMAGES. I'm not translating for money! Please understand myself.

I wrongly considered that yesterday was 22nd April. That's why I asked "Shall I start translate?" No other reason in it. Please understand friend.