Neither "Anonymous" Nor "Name / URL" Provide Comment Authentication

From time to time in Blogger Help Forum: How Do I?, we see the naive query / suggestion
How do I disable "anonymous" comments, yet permit people to comment using "Name / URL"?
This question is common among blog owners who think that people who comment, providing a blog / website URL, are somehow authenticating themselves.

The only difference between the "Anonymous" and "Name / URL" options is that "Name / URL" (which is selected at the option of the commenter) includes a properly formatted link to the website of the choice, by the commenter. "Name / URL" is still an anonymous comment, because it requires no authentication by the commenter. Any blog owner, moderating comments, should examine any comments, placed using this option, cautiously.


"Name / URL" is simply a convenience for anonymous commenters, to let them participate as in a blogging community. It provides a small substitute for the Google / OpenID profiles linked to, from comments using those options. Unfortunately, unlike the Google / OpenID profiles, anybody can comment anonymously, when permitted - and provide any "Name / URL" that interests them, at their option.

"Name / URL" is not authenticated, and anybody is entitled to enter any "Name / URL" that they wish.
  • If you see two comments, each with identical "Name / URL", that could be one person, or two different people, commenting.
  • If you see two comments, each with different "Name / URL", that could be one person, or two different people, commenting.
You simply cannot tell, in either case, with any amount of certainty. "Name / URL" is simply anonymous commenting.

If you wish to allow anonymous comments to your blog, prepare to accept "Name / URL" accompanied comments too. Just don't attribute any special degree of reliability, to such comments.

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