>-I don't like to argue, it is your decision. So I've tried to switch it off. This will fail because something blocks my signature. It's there for a while now and I like it.

The validation says the reason. Are you seeing the validation message when you save? You need to remove unsupported tag from your signature. After that, you will be able to save.

>You have added the ability to upload those images. I see its use, but I do not undestand way this is limited to images. Wath's wrong with a code snippet, dbf or frx?

This will come later on.

>On the other side this option uses a lot of space. On normal messages with some reply and a larger piece of code in it, ther is endless scrolling down to catch the submit button. Now its even more scrolling.

You may collapse the upload section. Simply cick on the collapse image.