https://bugzilla.wikimedia.org/show_bug.cgi?id=31747

--- Comment #4 from とある白い猫 <[email protected]> 2011-10-19 07:57:50 
UTC ---
The idea here is to offer a third way for people who want to display their
emails on their userpage but not want to be spammed like crazy. The idea is to
confuse the bots. If people want to use the current method text<image of
@>text.ext that would still be fine.

Why do we want alt description? We could do without that particularly for
emails. (and who doesn't display images really). If I do not want an alt
description for my email, I should not be forced to display it.

It could be crafted in a manner that the image becomes unreadable to bots.
Image could be fragmented to make OCR impossible or very difficult. For
instance OCR will have great difficulty recognizing a character if the
character is broken in to two or more images. Or it could be one image per
character. Also it is possible to add fake/invisible images in the mix that
machines would pick up but not people.

The more difficult it is for bots the better for us. I am fully aware there are
ways around every precaution but that shouldn't mean we should surrender to
spam bots.

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