Re: Apple copied the notch from essential
but does allow yours as a variant
So in fact according to the OED I'm not wrong? I shall ignore urbandictionary.com and wikipedia as authoritative sources. And your claim that Collins doesn't allow it shows you haven't done sufficient research, check it out.
Remember, it's better to check before posting than post and make a fool of yourself.
I think your claim to absolutism is clearly as invalid as mine. Maybe you'd like to check before posting in santimonious twat mode?