@freddyym you should definitely use Medium's import tool (https://medium.com/p/import) when you cross-post. 1) It back-dates your Medium articles to the original posting date, 2) It sets rel=canonical to the original source so you don't get hit with duplicate content — therefore doing so could actually boost your write.ptio blog more effectively (which is the main reason we're using Medium in the first place).
@jonah thanks, will do so from now on! A lot more effective then just copy and pasting the whole thing.