I do wear hijab but thought I would reply anyway. think i have seen ur previous thread a while back too
People refering to non-hijab wearing muslims as kuffaar is out of order!!! that's not islamically justified either, they could tell you its sin but it doesn't take someone outside of islam so i do not know where people can get the cheek to say such things
I wear hijab myself but I have 'downgraded' a lot, I used to wear full niqaab but i took that off a few years back now, then I was still in abayah and hijab, and i've taken the abayah off now about 6 months ago. I do know that it's better to wear it but my reasons were that i started to feel fake, as though its a statement that im really religious but i know i have a lot of short comings in the religion so i just no longer felt comfy wearing it. which i think people would probably advise "dont listen to that, those thoughts are from the shaytan" but i just felt i want to take it off - so i did. although i dont see myself taking off the hijab fully, but i wouldnt judge someone who does.
there are quite a few of my friends who i havet seen since i stopped wearing the abayah and i dont know what their reaction would be (but i can guess it would be bad), others have just not said anything to me about it although i know they must have been wondering! but maybe felt its best not to comment. i know a lot of ppl do consider even this, not wearing abayah - as haraam.
you need to make your own decisions if u wear it just cos of what will people say, inlaws or whoever else, then its not sincere. the door is always open for u to go back to wearing in future if you wanted to (you & me both) but if this is what you are feeling at the moment then its up to you, we answer to allah for our own actions so ultimately it does not concern anyone else!!