People say that #Mastodon ⭐️ s are purely to express appreciation, but that’s not quite true! The search function will do full-text search across posts you’ve favourited, so ⭐️s also create a searchable archive.

EDIT 12/18: alas, as many comments have pointed out, this only works if your instance mods enable the feature, and it's computationally expensive so some don't