I believe I declined one of those flags, and I would probably decline either of them most of the time -- which yes, implies there is some inconsistency in my attitude here (and WRT to many other things; I believe there's value in consciously applied inconsistency).
Before I explain why in this case, first, thank you for taking the time to do this and don't let me declining flags stop you from raising them. I would not say they were inappropriate; my "consciously applied inconsistency" is usually me acknowledging to myself that I'm of two minds about something.
I am aware that by the book comments of this sort are considered gratuitous on Stack Exchange, and I agree that in general this is a reasonable policy. However, I do not think it is a very serious concern (the way, e.g., abusive language is). By analogy, traffic cops do not stop everyone observed doing 90 kmh in an 80 kmh zone (but hopefully they do go always go after people who run red lights). Extending that, if a hypothetical citizen were observing a cop at a speed trap and said, "That person was doing 92 in an 80 zone!", I do not think this compels the officer to begin a chase, etc. I believe generally it is recognised that the police can exercise their discretion in making arrests, handing out tickets, etc.
Keeping the analogy rolling, hopefully part of what informs the "discretion" of a police officer is his or her experience doing that job all the time -- a greater than average awareness of the big picture with regard to crime or traffic behaviour in a given area.
If we had a lot of gratuitous "thank you" comments going on, or a particular individual who did it habitually, I would take the job of enforcing the policy more seriously. But we don't. Similarly, I remove them from questions if I am editing them for some other reason, but it is not enough of a reason all by itself for me to edit a question.
So, thanks again for your participation in the site, including asking this question. I realize that you can be automatically blocked from raising flags (temporarily) if you have too many declined and I certainly would feel bad if that happened because of this, so you've given me something to think about -- and if that should happen please don't hesitate to try to reach one of us in chat or raise the issue here.