[TYPO3-english] Weird caching behavior. Or is it?

[Oliver Salzburg]

I just started a new website, using FLUIDTEMPLATE. I currently only
have a single page.

I installed EXT:piwik and set it up as usual and noticed the following
comment in the site output:
<!-- No Piwik-Tracking code, because you're logged in as BEUser -->

But I see that on *every* computer, completely unrelated to any BE
login. When I disable Caching for my page, the behavior is like I would
expect (no code for me, but for everyone else).

Is this behavior to be expected? It feels a bit weird.

Cheers
Oliver