I mean I just don't see the point, it's not like you win prizes or money for having the best time, its merely just a site to compare your times to yourself and monitor improvement, and see if you can maybe score a top place on the board. I never even considered cheating because it would just ruin the fun of the run and make me feel so pathetic. Verifiers can sense somethings up if the player bee lines directly towards all the bosses in a random seed without changing direction or analyzing surroundings.
SSG runs allow you to enter any seed you desire, and you can have the seed open on seed viewer beside you if you wish, just has to be a new world and a new character, IIRC.
Print seeds is not a game breaking feature. It saves 5 minutes at most in the hardcore runs. The caves and burial chambers are very distinctly visible from a distance, and print seeds only works when they are within visible range.
The hardcore rules are getting looked at this week but none of the runs should be invalidated as it really is not a game breaking feature. I agree its unnecessary and hardcore runs can be done without it and totally ok to push for that in future, but please be sensible and don't throw the word cheater around.