It is very mean. I have also found this board a great source of support as well when my DH was hospitalised with covid. He certainly wasn't capable of writing huge paragraphs about musicals. OP even had posters lighting bloody candles.
I vowed I would stay away from this board as the anti-vax group tend to make my blood boil. However, although I haven't read the OP's previous thread, I wanted to counter the view that if you are able to engage with others on a thread, you can't be seriously ill.
I was hospitalised for 10 days in December and spent some time on C-pap. I was extremely ill and consider myself to be lucky to be alive. However, I had a thread on here whilst I was in hospital, as well as texting/skyping friends and family. My brain seemed to go into overdrive, partly because I couldn't sleep a great deal, and partly because the cocktail of drugs sent me a little crazy. I am immensely grateful to the Mumsnetters who chatted to me about books, concerts and all sorts of things, which helped me not to dwell on how awful things were at that time. And if anyone is reading this who chatted to me then - thank you again.
Not everyone reacts in the same way to illness, even severe illness. I saw 4 different medics over a 4 day period as I gradually became more and more ill before my stats were so bad I was taken into hospital by ambulance. Part of the problem was that I didn't make much of a fuss and I was able to articulate well with them. If you look up silent hypoxia, that might be a possible explanation.
Obviously, I don't know whether OP is being honest or not, but I can say that I really, really don't want to get Covid again. As far as I am aware, I am fit and well and I don't have any obvious signs of long Covid or after effects of medication, but something led to me being hit hard by Covid and I can't see why that would have changed. I am trying to live my life as best I can, without taking any great risks but, if the numbers continue to rise as we head into winter, I may need to take more drastic steps to protect myself.