The site is blatantly unethical. Users who correct egregious errors or blatant lies by paid "contributors" are banned. Fact-checking and backtesting of authors' claims is deleted. Their biggest author is a Libyan pretending to be an American, with a fake CV about banking, whose real history is Greek shipping, but he operates under a Japanese-sounding holding company using an empty storefront address in the UK. SA is packed with fraud: AVOID.