I have this kind of light outside my trailer. I know it keeps others awake because they told me so. Not rocket science in either theory or practice.
There appears to be a little too much caffeine in this thread.
Anyone who has watched Bob's videos regularly, and Carolyn says something similar sometimes, knows that he's a big fan of privacy and giving people space. I am too. He says increase the peace, basically, and talks about it not just as some weird, random, or objectionable personal quirk but as a basic rule of the road, so to speak, when it comes to getting along with other travelers and respecting them*. Think about listening to him:
If you think 10 feet away is plenty, try 100. If you think 100 is far enough away, consider a thousand. And so on. The intent is clear and the logic applies to any kind of impingement on others.
And I'd suggest that people who are particularly attracted to the quiet of nature, or just simple privacy and solitude, tend to be especially appreciative of being allowed to enjoy it, and especially uncomfortable when someone takes that option away from them. Likely all the more so if they've tried to drive far enough away to ensure that wouldn't happen.
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*This applies to city living just as well. Who hasn't had that bad neighbor whose music etc. dominated space far outside his own quarters?