1st: it's called identity theft, domains, and handles get pulled for it all the time,
2nd: you tarnish the name of someone who may not want to be associated with what you are passing,
3rd: you are not telling people immediately on every communication that you are not doug polk, so people who follow him for crypto and poker could easily think that its the real him....

My recommendation is get a new name through the fast options (costs about a few steem)

and message your previous followers, you only have 212 it only takes a couple weeks to build that naturally.