Is it possible to hide the porn in the federated timeline?
🇳🇱
@Skip Yes just mute the instance (option under the three dots)
@Skip
An easier way -- if you see a post coming from one of those adult domains in the Federated feed, open the post and you should be able to do it from there.
1. Click on the post to expand it.
2. click on the username at the top. It will open their profile page.
3. select the dots menu, and Hide everything from ... the instance. 
@Skip
Hello Skip, and welcome to Qoto.
Enjoy the network and all it has to offer. If you are new to using Mastodon, there's a good guide here: https://lifehacker.com/a-beginner-s-guide-to-mastodon-1828503235
As Freemo and Sphinx said, yes it is. There are some instances that specialize in adult content and sex worker posts.
That makes filtering those easier. An example is switter.at
Here's a screenshot of how to get to the place you where you can add a instance block.
1. use the search box, enter the domain name, or a user full name/address.
2. Once there, go to user profile, select the 3 dots menu, then block as shown in picture.
Have a good day!
@Sphinx @freemo