downloading files that BITZI says are "dangerous/misleading"

[LWnovice]

hi, i have been searching stuff and looking up the files with BITZI and pretty much everything ive looked at so far says its dangerous or misleading. is that really true that its dangerous. some of them they say are spam, others are fake. how could they all be like that?? what are the consequences of downloading them anyway??
thanks

ps, i did download a CODEC package which helped make a bunch of movies viewable, but there were a few files that still wouldnt open. especially the case with ITunes files. whenever i try to open a movie in itunes nothing happens.