Definite FUD. There are several people whos wallet addresses are the same as Suppoman. This could be for any reason, ie perhaps the individual just wanted to drop the coins in the pool and have everything managed by the team, perhaps when they chose to withdraw at the end, they want to stay anonymous.
Regardless the point is moot, since the official pool and frogger pool have both proven their trustworthiness many times over. I've been in both pools, and the level of transparency is clear. Anyone who has requested a withdrawal of any amount at any time has received their funds without unreasonable delay (allowing for process guidelines, timing of stake pool rounds, etc).