PSA: Check your spark plugs

I started a thread about this same thing a couple of weeks ago. This was my #2 cylinder, first one on passenger side. Plugs were all in pretty good shape with 90 k mi on them. A bunch we're loose, this one was partially unthreaded. The clean coil was the next cylinder back for reference.

 

Driver's side done. No real drama here either, going through the drivers wheel well helps to get the brace bolt and connector clip off. Seems the idle has quieted down a bit but probably placebo. All my plugs were tight.

 

Had the same issue with 2 of the plugs. Passenger side closer to radiator and center passenger. Not as bad as yours but discolored coils.