If it looks suspicious, report it. The "possibility that one may be doing something illegal" is not reason to suspend Freedom of the People. I'll bet you don't make the same correlation when deciding whether the IRS is good to go when it locks/confiscates accounts because someone is making transactions of under $10K because "they might be trying to hide something from the all powerful government confiscators".
This is one of those cases where we can see how those who purport to believe in the Constitution can be fooled into making decisions that are quite contrary to the Constitution because something affects their sensibilities/reasoning/logic and because it's apparently "for a good and just cause".
I'll bet that you have seen and agreed with Ben Franklin's comment about how those who will give up freedoms for security deserve neither.
Please understand that I am not slamming you - just trying to nudge your mindset back into alignment because I have no doubt that most unconstitutional activities by "officials" rile you as bad as they do me, but like me, you can be fooled into buying into something that seems to make perfect sense until the right synapses make connection.
This is what government has told people to do and many go overboard and inundate agencies with reporting.
The poster was referring to people imaging venues which have already been imaged hundreds of times by numerous sources.
For instance Disneyland has been said to have been targeted, and it's been imaged millions of times. Same goes for almost all of our sensitive installations/facilities including nuke plants. Maps/images are readily accessed.