It's been going on for a long time. Please check other Hivwatchers' comments on his account today.
Spinning plagiarism is a particularly deceitful type of fraud. It is an intentional activity to deceive and to avoid the detection of stolen writing.

It's been found that he was also scamming with multiple accounts on Steemit with plagiarism and comment farming.
These are his old scam accounts:
arv1
cryptoanalysis
dstats
ezravandi
fortune-cookie
jkv
livelife100
onephoto
onestory
qilo
steem-data
steem.doctor
storypics
up0
vishal1
votes4minnows

Comment farming, for example: