Erm .. you have 'never' used LW but make such a wild claim? LW program when downloaded from the 'Official' site has no such spyware, malware or anything of that nature. However, if people download files with viruses .... that is the same issue that applies to all p2p sharing networks.
I think you need to research your so-called assumptions a little bit more before making such claims. lol

emule suffers the same issue, depends what people download, & pretending emule is any safer is being highly ignorant of p2p sharing programs & networks overall.

Some of us have used many p2p sharing networks over the years.