seems like a another bitshares bagholder that doesnt know what there talking about and used information out of context leaves out the summary on page 4 where they state 

> We did not find any critical security issues, but report four medium-severity issues
and six low-severity issues, which can all be easily fixed. The Waves platform
otherwise shows good security engineering, good choice of cryptographic
components with reliable implementations thereof, and has a clear design and code
that facilitate auditing.
https://cybermashup.files.wordpress.com/2017/10/waves-audit.pdf

do your own research and dont take advice from bagholders who dont understand tech

if you held waves for a year would have made 100 times your investment is about 30% of potential growth short to mid term.