Formatting in the Wiki

Hi,

I have one question about the formatting of the Wiki pages. I'm
sending this to the website and the documentation list, since I'm not
exactly sure, which list is the right one.

I think, I remember an agreement, that in the Wiki we should not use
the Level 1 headings, because it produces the same formatting as the
Title of the page.

This would mean, that we only use heading2 and upwards.

Do I remember this correctly? Or am I misremembering?
Please tell me what the agreement is either way.

Thanks in advance.

Sigrid