Would we want posts like post #8831263 to be tagged as pendulum? You can tell it's a grandfather clock, but you can't actually see the pendulum. ETA: Looking through it more, there are actually quite a few posts where you can see grandfather clocks without any visible pendulum. The implications do make sense on paper, but in practice I think either one or the other should go through, not both. I think it's also worth noting that most of the results for pendulum are hypnosis porn so I'm not sure most of the people searching that tag would want to see grandfather clocks.
Would we want posts like post #8831263 to be tagged as pendulum? You can tell it's a grandfather clock, but you can't actually see the pendulum. ETA: Looking through it more, there are actually quite a few posts where you can see grandfather clocks without any visible pendulum. The implications do make sense on paper, but in practice I think either one or the other should go through, not both. I think it's also worth noting that most of the results for pendulum are hypnosis porn so I'm not sure most of the people searching that tag would want to see grandfather clocks.
I'll concede on the grandfather clock implication because of the above mentioned issues, though it feels a bit "ehhhh" to have one without it. I do still think the pendulum clock -> pendulum implication should be made, the tag is very small so the impact wouldn't be very large, also cross-section is another tag with mostly porn but a bunch of non-porn content because of the other meaning of the tag.
Currently under pendulum clock, these were the three posts I spotted that probably shouldn't be tagged pendulum. post #4611927: barely visible post #7564907: mostly obscured by text post #2404: Clock is viewed from the side so there is no pendulum visible, though one can argue it shouldn't be tagged pendulum clock either.
Just going with a rough estimate based on the posts here alone and I didn't even go through the complete first 100 posts of grandfather clock, it'd likely mean at minimum more than 1 in 10 grandfather clock posts do not have a visible pendulum.