Hmm.. Do you go to their feeds? I don't get many comments like that, but if I do, I usually go check to see what they have and try to help them make less invasive comments if I can.
I would be unlikely to vote for them, but I would comment on their posts. It's not like my vote is worth anything as you pointed out.
Hopefully my advice will have more value since they are here and trying at least. The engagement and the number of actual people trying here is so low that I try to boost it where I can.
I will visit sometimes, but it's not always possible. I've helped a few to understand the issues with what they do
Yes, it definitely takes time - I find about half the people I talk to are just lost and need help. The other half are scheming so it's not worth the effort in those cases.