[seqfan] Re: Email addresses Was: offset of A000254 wrong?

Raff, Paul praff at math.rutgers.edu
Wed Aug 5 00:07:29 CEST 2009

If we're forward-looking and thinking about the upcoming wiki, what about
having email addresses inside a reCAPTCHA, for those that are concerned
about them getting scraped?

You can look on my website for an example, in case you don't know what a


It would be more burdensome for the person trying to find the email address,
I agree, but not so much as to prevent the user from abandoning his/her
effort to get it.


Paul Raff
Graduate Assistant - Monitoring Message Streams
Rutgers University

On Tue, Aug 4, 2009 at 5:00 PM, David Wilson <dwilson at gambitcomm.com> wrote:

> I think if you want clickable mail addresses, you are dead in the water,
> since anything you can mail to, a bot can uncover.
> On the other hand, if we had some special code, like inserting a random
> first and last letter to the user name (e.g, joecool at comcast.net becomes
> mjoecooly at comcast.net). The munged address is easy enough to revert for
> those in the know, but to a bot it would appear like a well-formed
> address. Just a thought.
> On the evil side...
> Embed large numbers of randomly generated bogus email addresses in
> invisible areas of each OEIS page. When bots hit the site, they will
> think they've found the mother of all mailing lists.
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