So are comments and dislikes apparently. I see 6 comments listed on this thread, but none are actually showing up at all.
PieFed help
It's seems right that we should have a local community to help us all with PieFed
Rules
Be kind! We're all learning
It seems fine to me:

Yeah, this is a known issue: https://codeberg.org/rimu/pyfedi/issues/1225
I remember looking at this one night, but couldn't track it down. In general, this seems to just be a UI thing and subscribers are being tracked correctly for the purposes of federation.
Funny, now that you mention it, I checked in the actual subscribers' list, and that seems correct. But I notice that a majority of the subscribers are bots. Does Piefed only show real people? I haven't counted non-bots to see if there are indeed 16 of them, I need to catch my bus to work in a minute ๐ But that'd be a neat trick if it did.
At some point we talked about not having bots count to overall subscriber count, but I don't know if its implemented yet.
I think it is - I was the originator of the issue... I brought it up because it was getting difficult to sort out the bots from real subscribers to my community.
Here was the issue: Bot Counts in Community Stats - And it was implemented in the 1.4 release.
Nice! This is actually useful. Although I suppose it doesn't matter for big communities, where the percentage of bots is small compared to the total number of users.
So that's one of the mysteries solved ๐
I counted 14 accounts whose names seem to be real people. Piefed reports 16 users. Assuming the regex to detect bots missed a couple, it would appear to be implemented.