To stay safe you should use 1 dedicated proxy per account, so I'd say no.
I'm in a similar situation: what VPN would you recommend using if I need to have one dedicated IP per account?
I am currently using HighProxies, but I have been using SquidProxies for several years.Thanks for the info, I'm actually wanting to use it for reddit. Any companies you would recommend? I tried one (I think it was ghostproxies or something) and ended up getting every account auto-banned.