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"But of course there are obvious exceptions."
The above saying (and acronym) was coined by Scott Adams, who got tired of saying things like "It's a nice day," and getting responses like "It may be nice here, but elsewhere in the world the weather might be bad, and some people have crappy lives in general."
Someone who includes BOCTAOE somewhere essentially means: Just because I do/did not explicitly point out or acknowledge any or all exceptions to a generalized statement does not mean that I am unaware of said exceptions, let alone is it an invitation to point out the exceptions to me or draw my attention to them. Furthermore, when I qualify generalizations with "most" or "usually" or "almost all/none" etc., this is an explicit acknowledgement of the exceptions. Either way, you do not have to point them out to me.
All generalized statements made on this website should be assumed to contain a silent BOCTAOE. This also applies to the previous sentence.
Also, know the difference between an opinion and something stated as fact. "I don't like X" is the former. "X is bad" is the latter.