Haven't seen you post anything that would support your claim. MoneroLink does not apply to RingCT transactions, so it's just baseless FUD at this point. The Steemit article is written by a mentally unsound individual. The claims made in that paper are equivalent to saying that Bitcoin is junk because it's susceptible to 51% attacks.

Oh, and Bcash/Zcash are more or less garbage. Bcash = Chinese shitcoin. Zcash = honeypot.