The following is my OPINION based on what I've seen at Platinum as well as other small sites that have had problems (Choice, big bet, etc).
The facts
<ul type="square"> Many of their regular players have left. Connection problems have been happening for over the last week. Cashouts have been slow (although they are still going through at this point from what I've seen/heard)
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Based on my expereince with two other sites that have gone under, I would advise anyone with money still at the site to consider how much they have at risk and how losing that money would effect them (i.e. if they go under will losing the $X you have at the site be devastating to your bankroll?)
I'm NOT saying they are going to close, and furthermore even if they do close it doesn't mean they are going to take your money (for example, when big bet closed they gave us time to get our money out and to the best of my knowledge everyone got paid), but there are a number of warning signs that have started to show up and I would say you should be very careful at this point.
Once again, just my OPINION based on previous expereince.
J