"Include public posts in search results" setting in the Mastodon profile settings
https://media.hachyderm.io/media_attachments/files/111/115/208/530/827/152/original/8f1aedf4dbb02e30.png
Mastodon supports actual real search now! This is great to find interesting people and content from all over, even when people don't tag post. To be sure people can find _your_ public posts, opt in (your server has to be on Mastodon 4.2 or higher).
Setting in your Mastodon settings under "Public profile" > "Privacy and reach". Don't forget to hit the save button on the bottom of the page.
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