Personally, I'd rather type 'the b word' than use it, but no one would know what I was talking about.
I'll also rarely use the n word in full if discussing issues like this one with my husband, as it's only the two of us so no one else will be bothered, when talking about the impact of hearing the word 'n'''r' - to say it in full, really brings home how shocking it is. But I don't see the need to use the n word in full in public discussions when everyone knows what we're talking about. Do you want to say it?
I also see many people say 'the p word' on Mumsnet (as a non-Brit I found that very confusing for a while), and 'the r word' or 'r''''d' when discussing disability. So that's not the only word people asterisk out or don't write. In old novels, writers used to dash out (I can't do it or it messes up the formatting) 'b'''y' or 'b''''d', and people still at times say 'G-d' if they're of certain religions.
I think it's clarity of communication that's important, so making sure everyone does know what you're talking about, as opposed to writing out every letter/saying the word.
These days, I think it tends to be that words that were the label for a demographic who have been wholly dehumanised in (relatively) recent history, are confronting to use, so should be done only when needed. As I said earlier, such words (and for me as a white woman, that does include 'bitch' when directed at a woman), which have no use but to remind the person they're directed at of their demographic's total lack of humanity in so many people's eyes, in recent history and the present day, are like a figurative slap in the face.
For me, it feels a little like unnecessarily rubbing salt in a wound.