The main use of negative reviews

[anhinga_anhinga]

They sometimes allow me to read an interesting text, which I would not be aware of otherwise.

Yuri I. Manin. Georg Cantor and his heritage

Found via the following negative review (in Russian):

http://www.livejournal.com/users/bbixob/37413.html

Comments

[anhinga-anhinga.livejournal.com]

One more (lj-synchronicity, of course):

http://www.ntv.ru/gordon/archive/17450/
http://diffiety.org/

via

http://lj.rossia.org/community/ljr_math/7460.html