You get the receipt from Immigration if the address registration is done in person. Hotels do use the on line system as it is more convenient and that requires a print screen.
At the moment it is known that the Thai Elite Visa and the Thai Consulate in Penang Malaysia looking for overstays in the past en may refuse applications.
What others will do in the future is what we will learn in the future, advice is to always avoid to go on overstay as there are options enough to get a legal stay.