I don't get why people are so worried about this. The effects are so small, it is almost like worrying about undesirable side effects of homeopathy. (What if all this healthy "information" in the water also makes cancer cells more healthy?)

Compared to that, the effects of more and more sugar consumption are huge and quickly visible. Same for missing physical activity.

Also, much larger effects come from dirty drinking water, with "dirty" in every sense: chemical, biological, etc. Some countries even resort to chlorinate all their drinking water because they finally gave up keeping their water clean.

Or, fine particulates in cities who fail to keep their air clean (read: almost all cities).

These are real issues with huge effects. No need to exaggerate on tiny effects like wifi radiation, unless you are talking about nuclear radiation caused by vulcans or more recently, malfunctioning nuclear plants.