> 
> But some people are using text-to-image products
> to render buttons and this is where you can
> use CSS instead.
> 

ok, i see.

> Btw. Text-to-image obfuscation makes it harder for
> machines to automatically fill out forms but not
> impossible.
> 

of course ;-) this is just to prevent impossible amounts of spam. it
is ok if it fails once in a while. so far i have not heard about a
reliable algorithm for accurate image recognition.
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