I don't take any advice from any website. Sometimes their analysis sparks a more detailed look and/or a letter to the company. I read everything I can but am highly skeptical, looking instead for solid trial statistics and cash on the balance sheet.
RVX is going to have to raise cash very soon. That should be a good point here to enter or add to your position. The risk of being out right now is that the futility analysis is also due within a couple months. The longer we wait for that the better the results will likely be.
You might also check out the RVX board at Agora.com