I think it's a case to case basis. If I were a moderator and I see an account just days or weeks old spam upvoting in other threads, I would be suspicious. So I guess it boils down to how old your account is and past activities. My reddit account is years old with not much activity but I don't get banned despite upvoting/downvoting/commenting in posts under subreddits I am not subscribed in.
What is considered an aged account? Is a 1 yr old account safe enough not to get banned?
I think that 1 yr accounts are already considered "aged" but you should still be careful since posting links or marketing a product out in the open could still give red flags to mods. Let the pros in upvotes.io do the dirty work for you. xD