So, theoretical atproto service: “Omnifollow”. For those of us who prefer one social graph. Sign in and grant it repo:* access. It watches the firehose. If you follow someone on service A, it autofollows them on any other service that you both use, e.g. you both have profile records for the service
If you have a fediverse account, you can quote this note from your own instance. Search https://bsky.brid.gy/convert/ap/at://did:plc:2zmxikig2sj7gqaezl5gntae/app.bsky.feed.post/3mccyl3mao22h on your instance and quote it. (Note that quoting is not supported in Mastodon.)
From my perspective, the ATProto social graph would be more useful as a "find your friends" across apps, not necessarily auto-follow.
Rather than sending all your contacts to every app, you can choose which of your apps to "recommend" follows from.
RE: https://bsky.app/profile/did:plc:2zmxikig2sj7gqaezl5gntae/post/3mccyl3mao22h