My sister has been very vocal on social media during the pandemic - posts nearly every day among the lines of STAY THE FUCK HOME and 'stop killing grannies'. Mostly posts about how her and her family "haven't so much as been for a walk in 5 months". Irks me because it's a lie, I went for a walk with her as soon as we were allowed to. Lots of blaming neighbours and a bit of mask bullying too. But her eldest (18) has, the whole time, been between hers, her dad's and her boyfriend's - because she can't bear to be without her boyfriend around her apparently 
Anyway, sister has shared an article from the BBC about how there will be a spike in cases in January because of the relaxed Christmas rules. She's done a 5 paragraph rant about "irresponsible people making the sacrifices me and my family have made by staying home the whole time, worth nothing". And how her and her family aren't seeing a single person during the relaxation period, except for her MIL who is already in their bubble as a single person household.
WIBU to comment saying "Oh so I guess you don't want niece to come over Boxing Day as planned"?
For context: my kids are at their dads on Christmas Day and night. I'm picking them up mid-morning Boxing Day then on my way home i was gonna pick my niece up, she hasn't seen my kids since October and they all adore each other, so I thought a sleepover while we're allowed (and back home the next day before restrictions return to normal) would be nice. Sister bit my hand off at the offer! She knows that my kids will have been mixing with ex's family the day before and that I also will have had lunch with our aunty/uncle and grandad. So lots of mixing, she's knows this. I'm fine with it as it's kept within the rules, assumed she was too. But this attempt at virtue signalling makes me want to call her out as she's either full of shit or she's changed her mind and not told me.