Just ignore this guy, he’s a troll. The Cyphertrace thing he is referring to is 2 years old and EXTREMELY overblown. There is a an unclaimed bounty from the FBI to trace Monero transactions. Wouldn’t cyphertrace have claimed it if they actually could trace Monero transactions? The Monero community is very open about discussing the tech and its issues. They are near-pure technologists, not get-rich-quick-cryptobros.
The 51% “attack” he is referring to is that a mining pool briefly had over 50% of the total hash rate. No attack took place, and within hours miners had moved to other pools bringing the hash rate of the 51% pool down to the mid-30s%. I’ll also mention that the power of 51% attacks is largely overstated too, especially in a privacy coin like Monero.
