The 28k address has been debunked in a couple of ways: there is no evidence of newly generated coins arriving at it, and 28k BTC over 2 months would equal 35 PH/s - far too high even compared to GAW's own claims (e.g. warehouse capacity).

All other Scrypt coins are less than 10% of LTC, and the only other big Scrypt coin (DOGE) is merge-mined with LTC.

In other words, there shouldn't be any "belief" in the inherently trustless environment of crypto-currencies. There are cryptographically verifiable methods of proving mining capacity and any cloud mining business not doing that should be rated lower than those who do.