I do not think this is an scam accusation topic.
I think there are something unusual going on with ETH.
Here is another one:
https://etherscan.io/tx/0x1f73b43dc9c48cc131a931fac7095de9e5eba0c5184ec0c5c5f1f32efa2a6babAnd this one is multiple times larger than the one above. It's 2100ETH
Not sure if this is intentional or error.
Edit:
Interesting timing:
https://etherscan.io/tx/0x1f73b43dc9c48cc131a931fac7095de9e5eba0c5184ec0c5c5f1f32efa2a6bab @ 1 day 9 hrs ago (Feb-19-2019 01:19:12 AM +UTC)
https://etherscan.io/tx/0x464e50e8ade15ad883f80fd173f6afd85efdf15413892625fe0146fbe5fecd92 @ 1 day 5 hrs ago (Feb-19-2019 05:13:36 AM +UTC)
Both from same address (!)
0x587ecf600d304f831201c30ea0845118dd57516e
This was intentional.