Really? I give location and context and the Why of the message. I make sure that every message is unique (unlike the code I changed in a certain once-prominent US firm's three-letter operating system) as well. I clearly know nothing and shouldn't be in the profession.
really? i think you might be mistaking exception logging for quick debug lines, like when a certain line isn't being hit for some reason and you just want to quickly know if it does hit. you would clearly delete these quick messages before checking in. No need to get so dramatic ...