Also among contributors to Snopes: The Heritage Foundation, The Reagan Library (no relation to Ron, but a much older Conservative think tank), Michael Long (chairman of the NYS Conservative Party), Dieter Kessel (long time conservative Republican fund raiser). There are many conservative donators to Snopes, there are many liberal to Snopes. "The facts, ma'am, only the facts," from the original Dragnet Radio Show opening.
Unfortunately, Snopes is in crisis mode. The couple who established Snopes and run it, are in the middle of a divorce. Could sink the site. Many from all sides of the political aisles have found Snopes to be an asset.
Soros does what many wealthy philanthropists do, fund their choices through their own trusts and foundations. Sometimes for tax reasons, other times anonymity doesn't raise questions about motivations and influences, other times for religious reasons, it isn't really giving if you're getting something back. Late in his life, Andrew Carnegie thought he could buy his way into heaven when he died, as if being charitable would compensate for his many crimes of greed. Others may think similarly, but believe anonymity will help lean the scales of justice in their favor.