I tried googling it, but no results listed any contact info.

you send them a pm

Depends on which Piefed instance you're trying to contact and for what reason.
In the cases of feature requests a good place to start would be piefed.social/c/piefed_meta - !piefed_meta@piefed.social

If it's about contacting a specific piefed instance then check their about page, f.e.: https://piefed.europe.pub/about

If it's about helping out with developing etcetera then this page has links that will bring you to the right place: https://join.piefed.social/

If you don't get a response to a pm, you could go to c/piefed_meta or c/piefed_help - most of the admins will be watching those communities.

At the bottom of the main page click on about and you will see the admins, now click on one and send a pm.

In the footer there is 'About'. That page lists the admins. You can click on their name to view their profile and from there send a PM.

But no way to do it from clients like voyager, right?

Probably not. But perhaps you can suffer through 2 min of clicking in the web UI? Once you find their info you can DM through Voyager if that tickles your fancy.

So you can appeal a ban? Good luck.

So I can have all content I posted removed since the admins protect little weasels like you. I’m not going to be a part of shit like that. Also.

I really hope the admins are seeing this shit. This clown has been fooling me around. Yet you banned me.

EDIT: admin saw it, and rightfully unbanned me, and then banned the weasel

LMAO