Putin couldn’t care less about the support from some random programmers. Be realistic, what do you expect them to do? Take up arms? Protest and get imprisoned? Vote in the sham elections?
Targeting random civilians in hopes of political change is the strategy of terrorists.
Even if you computer is not exposed to the internet: are you certain that every other device on the network is safe (even on public wifi)? Would you immediately raise the alarm if you saw a second printer in the list with the same name, or something like “Print to file”? I think I personally could fall for that under the right circumstances.