As long as you always have an ad blocker active, TSR is pretty safe to use.
It will block viruses, because viruses are hidden in ads there, and not in TSR's site itself. Whatever TSR tells you, and no matter how much time your downloads take there, never download anything there without an ad blocker. You can get viruses from The Sims Resource if you don't have a good ad blocker. Hope this and everyone who worries about TSR : (be sure to have an ad-blocker on this one) If you have a website that is safe and has quality CC then post the link and I'll put in here! Since people are always looking for them. So I wanted to do a post about some safe custom content web sites.