Wait. There’s a vaccine for Bug?Oh I get it.
OTOH, we've been dealing with bug for a year, and folks (incl. me) are really, really happy to get a vaccine.
So what if people post a picture of their bandaid on Instatard? They do the same thing if they get a new car, right? They're just happy they got it. Maybe they're also hoping to influence others to get a vax too; nothing wrong with that at all. If you believe something is good thing, why not allow a little peer pressure to work its magic?
If you call everything virtue signalling, that phrase going to become just as weak as "cancel culture" and "snowflake" or "unique". (The last one really bothers me, more so, "very unique". Either it's unique or it's not, there's no steps).
As to the "the cost", if you listen to some tinfoil folks around here, you'd think the cost of the vax was very high.
PS - I got mine at Kroger, and the receipt said my insurance "saved" me $5.60.