Just working through the implications for the average person out of interest, not criticising your friend of a friend. Sorry if it came across too severe.
Sure, it's not sustainable if everyone does it, but only a few people do so that line of reasoning is pointless.
(This is a great thread derail though...)
https://en.m.wikipedia.org/wiki/Tragedy_of_the_commons
@Greenbank started
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Just working through the implications for the average person out of interest, not criticising your friend of a friend. Sorry if it came across too severe.