At no point has anyone said that anal sex is disgusting, shameful or that people shouldn't do it. The OP was given plenty of suggestions on how to proceed if she wants to carry on trying. However she was also reminded that it is absolutely fine for her to not like it, and to say no, however much her husband wants to do it. This is an important reminder, in the context of the very recent increase in the "profile" of anal through readily available porn- all of which presents it as something that everyone wants to do, and which involves no more care, preparation and discussion than PIV.
This led to more discussion- with some people saying that the best way to counteract the "everyone's doing it" culture is to treat it exactly the same as PIV. Others saying that it's very important to emphasise that it is not for everyone (men or women) and that it does carry more risks than PIV and is more likely to be damaging and painful.
One post was deleted for presenting otherwise sensible advice in a overblown creepyfuckery sort of way, rather like an extract from one of those pot boiler porns Ann Rice used to write.
Then people started to get rude and personal in order to prove how incredibly cool and edgy they are and how exciting their sex lives are......which is always tedious but predictable. With a bit of feminist bashing thrown in for good measure. Feminists and their pruritannical, fun sapping "Don't do things that you don't want to and which hurt and it's OK to say no" mantra.....
There are important facts to be born in mind. Anal sex is more physically risky to women and is more likely to hurt women than PIV. There is plenty of evidence that women are being "persuaded" into trying it and that the readily available porn gives an even less realistic picture of anal sex than of PIV. Very young people of either gender are unlikely to have the experience, control or skill to make it pleasurable and safe for the woman. And no, not all sex acts are equal. And it is absolutely fine not to like things.