Genuine question: is there a reason for the downloads to be hosted at source forge?
So it should be safe again.
SF is under new ownership as of last week, and they've already removed the most problematic behavior. If you find malware you should let them know, as the new ownership seems much more on the ball.
I've grabbed 5 year old tarballs off SourceForge before. I know there are 5+ year old torrents that still have peers but that's an exception to the rule.