Multiple Subdomain From Multiple Platform

Dear All

If I have 1 main website -> myname*com.

Then I share every new post url from myname*com to my multiple subdomain platform such ->
myname*wix*com
myname*jimdo*com
myname*tumblr*com
myname*weebly*com
myname*blogspot*com
myname*wordpress*com

Also I share to social platform such ->
twitter*com/myname
facebook*com/myname
pinterest*com/myname

and many more with same name and email .

How is the positive and negative effect from this method?

Regards

There's literally no effect. Nothing will happen.

Except for the "feel good" feeling, thinking you're the first person to do this.