Again and again I see the Greek capital letter lambda, Λ, standing in for the English (latin) letter capital A. You know, in trendy logos for film studios, web consultants and the like.
This is a sin against typography and it must stop!
When I’m reading, it just trips me up to see a capital lambda in the middle of English text. Yeah yeah, it looks cute and it introduces all sorts of amusing design possibilities, but it’s just bad writing.
I feel a tiny bit guilty about this rant because the most recent example I observed was Transitive:
Ooh I just found another one (I knew there was a good reason to delay publishing this article):
and they commit the additional sin of using a Greek capital letter xi. Is there no end to this madness!
[A couple of month's later Dyalog send me an e-mail inviting me to their corporate headquarters]