Filters are a good way to customise your timeline on here. They let you automatically CW or completely hide posts with certain words, phrases or hashtags.
To create a filter on Mastodon:
1. Log in through your server's website (some apps also let you create filters)
2. Click Preferences > Filters (on mobile click
, then ☰, then Filters)
3. Click Add New Filter
4. Choose your settings, then click Save New Filter
There are lots of questions answered about filters at https://fedi.tips/filtering-your-timeline-to-hide-posts-on-mastodon
@feditips tusky has an option to filter out a hashtag directly by clicking on the hashtag and I wsh masto had it too.
@feditips (*filters)
Just FWIW ... they don't work on the # Explore page.
@gsymon @feditips It should be fixed in v4.2.0-beta1.
Fix filters not applying to explore tab #25887 https://github.com/mastodon/mastodon/pull/25887
@feditips You don't get this kind of customization on other feeds. Especially the expiration feature. That's a great addition.
The filters aren't specifically for hashtags, they're for words which may or may not be in hashtags.
They would have to build a separate hashtag system to have a filter icon next to hashtag follow icons.