I got bored with visiting every day after the forum or board was more quiet for a while, and then I was simply out of the habit . . .

There are probably 2 ways of a person or domme might be thinking of a no-safeword session. One is the sessions in which the domme has a wide choice of activities and the other is where the domme has a narrowed, pre-agreed choice of activities. Since I don't wish sounds, or medical procedures, or to be kicked or nipple tortures and a half-dozen other things, I would not to try set up or agree to a broad and/or chaotic no-safeword session.

Other than that, I think that a person who desires that can choose some dommes who are likely to forget to set up a safeword or suggest going without a safeword by making a guess based on their ads or reviews.