I think that the somewhat balanced upsides and downsides of flu-shots are recognised. In Slovakia, I perceive almost no pressure, at least to adult me, to get this particular type of vaccination. Although now that I am googling it, my insurance will cover the shot, should I want it, and my insurance company actually does recommend it for my demographic. It is compulsory only in some specific situations, such as in the homes for the elderly. On the other hand, the importance of vaccinating children against polio etc. is emphasized a lot, much, much more than flu.
Vaccination is probably one of the hardest topics to have a rational discussion about. I have some reason to believe that the author of http://whyarethingsthisway.com/2014/10/23/the-cdc-and-cargo-cult-science/ is someone interested in looking for the truth, not winning a side - at the very least, I'd like to help him when he says this:
I'm getting started on reading the actual papers, but I'm hoping this finds someone who's already done the work and wants to go post it on his site, or if not, someone else who's interested in looking through papers with me - I do better at this kind of work with social support.