Alright, so I have just got done testing an issue(at the time of writing), and I have found you can Desecrate Ascended-Players-turned-Deities Altars without penalties(I follow vynora, but I don't know if it is a different story for the Player-God religions)... I started to Desecrate the altar, and No warning about my deity ready to punish me, and after I succeeded there was No alignment loss, no Faith Loss, nothing.
Also I didn't get hurt twice in a row after failed attempts, I don't know if I lucked out, or the damage from failure is bugged to.
Also don't worry, I did this only to abandoned stone altars.
Just please answer me this, is it a bug?