Yes, the hashtag feature works for me. Are you logged in to Pixelfed? It seems like you have to be logged in to be able to see the hashtag feed.

Yes, I have a user on pixelfed.social. I like it, and use it daily.
It is kind of like Instagram, but in the fediverse and is open source.
A cool feature Pixelfed has is the ability to follow hashtags, so your home feed will be a mix between posts from the users you follow and the hashtags you follow.

Thank you for the suggestion! I’ve added the link you provided alongside the donate page link :)

I have a GitHub repo that lists merch for open source projects and organizations that promote open source software.
https://github.com/makmarian/open-source-merch-list

old.reddit.com (and the .onion one) works in the Tor Browser, for me at least. I am not logged in