I tried to look up original report, and there is not much detail there. Seems like something done for some international volunteering day, which doubtless is a goyishe influence. It would be really interesting to understand what is exactly happening. I found an older 2004 Israeli research saying that being religious positively correlates with volunteering among Jews, but not among Arabs …
I am also not 100% sure whether we want to praise people for volunteering or not. On one hand, volunteering does show person’s middos, on the other hand, do we really think that a person who is doing bikur cholim after heart surgery is greater than a person who mamash did the heart surgery.
Do we have a general view about it? Does the one who is not paid better than the one who spend years – and 100Ks of his own money – studying for the job?
The Daf Nedarim 40 discusses something related about what counts as a mitzva or paid work, and also that saving person’s life from sickness is like finding a lost objects for that person.