<1. I use Microsoft Antispyware. It gives no comment whatsoever about this site.
2. Images at this site are generally in the \images\ folder of the same server. There may be confusion with ItsYourTurn.com where images and scripts are generally loaded from j.iyt.net. Nevertheless, loading IMAGES from a different server is not considered unsafe. It is true that IE has respective setting, however, it must be turn on by hand; no highest security level has it on by default, and a very few contemporary sites would pass it.
3. Security alerts are triggered by redirection of some specific things, like form submission, or mixing secure and non-secure items. These are not used here.
4. Albeit ItsYourTurn may work faster for those who are in over 20 hops from uff.cz, "pages" are much more complicated there, by default loading a page for a non-member includes execution scripts from a number of servers including such notorious as MidAddle, TribalFusion, etc. Both BrainKing and ItsYourTurn mandate acceptance of first-party cookies, however, if you accept also third-party ones, they are "identified" by Ad-Aware as "data miners". In IE resolve this issue in Privacy->Advanced.
(kaŝi) Se vi volas saluti iun en ties denaska lingvo, provu nian 'vortaron de ludanto', en la ligo "pli pri lingvoj" sub la flagoj. (pauloaguia) (Montri ĉiujn konsilojn)