The widgets have nothing to do with this site or whether people like them or not, they're part of individuals' signatures and if you like/don't like a particular person's signature you can certainly PM them and tell them the trouble you're having and maybe they'll change it for you.
I don't think many people have widgets anymore since the first time they were complained about a month ago, before this latest brouhaha, several people took them out of their signature, in deference to others; there are only 4-5 members that still have them looks like to me.
One of the biggest problems with the widgets is that they come from another site and have to load each time a person's post comes up and that takes additional time, loading that page so if several people have widgets in a thread, which use to be quite common, that means the thread is slower to load.
If you block the widget in your browser, it doesn't block the rest of a person's signature, just the widget. So you still see everything, just not whatever widgets are being generated from whatever location you are blocking on your machine. That also takes care of the slower load problem, if one was aware of that because of the widgets.