In looking at these three examples, I immediately hit "Publish" on the first two. I attempted the third, simply because I wanted to move forward with the actual problem diagnosis.
The "easy" "words" which contain "characters" in black, on a clean white background, are sort of guessable. I've seen enough of them. They suck - but they are predictable.
The other "words", in the shadow box, with noisy details - I guess represent the latest attempt to keep them from being guessable by automated processes. These, I fear, are simply over the edge.
You get one chance with each CAPTCHA - a wrong guess, on either "word", simply leaves you looking at a different CAPTCHA. So, you have no opportunity to learn from your mistakes.
The above 3 examples show the "non easy" "word" semi visible, at least. Recently, I have seen some CAPTCHAs where the "non easy" "word" was just a black box on the screen - no content at all visible. In one case, I hit "Publish" 4 times without entering anything - simply because I could see absolutely no detail in the black box. Will your readers be that persistent?
If you are using CAPTCHA screening in the comments, on your blog, you will have to decide for yourself whether you wish to continue doing so. I removed the CAPTCHA from my blog, a month ago. Had I not removed the CAPTCHA a month ago, I would most surely have done so, today.
Were I be idly preparing to comment on your blog (for any purpose not involving me diagnosing a problem for someone), and were I to encounter these CAPTCHAs, this would simply be the last time I attempted to publish a comment, on your blog.
Comment publication I regard as maybe optional - it's no great problem (to me) if I can't publish a comment, on your blog. I have no idea what I will do, when encountering these abominations under a high stress situation, however.
- Account creation.
- Account / blog unlock.
- Two step authentication necessitated re login (which I do see, regularly, when using the forums).
I don't use CAPTCHA screening - though I will moderate, here.
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