I have trouble with a lot of those “captcha” systems. When the letters are oddly curved, run together, or otherwise obscured, I have a tough time. I thought this one wouldn’t be so tough, though. Until I saw the note, “it is case sensitive.”

The “y”, “e”, and “4” are simple. The “u” is … marginal. But is that “w” or “W”?  “z” or “Z”? No flippin’ idea.

I wasn’t going to send a comment. And, seeing as how I can’t reliably determine what to type here, I wouldn’t even attempt it. Knowing my luck, I’d get into an infinite loop of failures and ambiguous prompts.