Hi Troels,
In case you missed it, I have been deleting a number of spam bots from the
wiki:
http://wiki.nmr-relax.com/index.php?title=Special:RecentChanges&from=20140324000000
Somehow the new CAPTCHA method
(http://thread.gmane.org/gmane.science.nmr.relax.devel/4334/focus=4367)
has been defeated. Maybe there is a person who spends their whole day
just creating bots by hand and they managed to find the result to one
of the questions on the internet? I have no idea how they got
through!
So maybe we need to modify the questions a little. For example the
spectrometer frequencies with Bruker magnet pictures, maybe instead of
asking for MHz we could ask for Hz. For the magnet company starting
with B, that could be changed to J, V or I. The white nucleus to the
black. The RDC, NOE, and FID acronym questions rewritten (maybe
expanding acronyms is the weak point). The HSQC text removed from the
pulse sequence.
I have a completely different idea which would be much stronger, and
would block the way the bots previously got in. That would be to have
a list of the top original papers in NMR dynamics as DOI number (maybe
not as a link to make it more complicated). Then we ask questions
such as, what is word 9 on line 6 of paragraph 2 in the PDF of the
paper with DOI number X? Or what is the the last name of the second
author of reference 22 in the paper with DOI number X? We could avoid
the title, author list, abstract, and anything else available to the
general public. Then only people with journal subscriptions can sign
up. We could then provide a 'reload captcha' link to allow the person
to easily access a different question, just in case they don't have
access to a subset of the papers.
Anyway, the spam bots have been significantly slowed down by the
NMR-based CAPTCHA. They are currently manageable. But what do you
think about changing the CAPTCHA again?
Cheers,
Edward
Spam bots on the relax wiki again!