Sure. That's what the link is for. I share it on every post, too. You also have a similar referral link via either PeakD or InLeo if you use those frontends, too. I just know you have plans to use your HIVE, and mine is in HODL mode.
Note that whoever refers an account gets a default delegated percentage of post payouts from that account, but I would not have any problem with that being turned off by whoever uses the link.
Right @nicolaasmuller actually already HAD an account... I just didnt know or forgot. He never did anything with it.