30040 is essentially a container, but one meant to be in a feed. Been thinking about these events that aren't best suited for a feed - which might require a new kind. I think the recommended practice would be to use a different event kind that has the same functionality of 30040, but explicitly not for feeds. The other option would be to use 30040 with a specific boolean tag for `feed=false` or something similar, but I think that practice is discouraged. Zap.cooking uses a tag for 30023 events to only pull in recipes. 

https://njump.me/naddr1qqekwmr0wa5kueedwfhkcmrn8gkhycth94mx2empdckhxatndp5j6en0wgkkzttgv4skcarg0ykkymm0wd6zzq3qc6dhrhzkflwr2zkdmlujnujawgp2c9rsep6gscyt6mvcusnt5a3sxpqqqp65wenuyur