It's ironic that the author is defending the rights of kayakers to do what they enjoy in the lake, while simultaneously berating photographers and "instagrammers" for "ruining the view for others" with their mere presence.
The article does raise many good points. Fences, property-rights, and rules should be respected. But much of the article comes across as paternalistic virtue signaling. Anyone's choice of hobbies or livelihood can be psychoanalyzed as being selfish or narcissistic or parasitic. The author loves to shame instagrammers for being driven by "likes" and "attention", and I'm sure someone else out there would love to shame the author for profiting off of nature instead of toiling as an unknown environmental activist. Unless you're a psychologist or mental health professional, perhaps we should all just let others enjoy life in any way they want, without feeling the need to judge and condescend to them.