Well, some 911 protocols require a response to each call. This sort of thing burns resources and can endanger others, or even the caller herself, if they finally ignore her.
I had a relative who took to doing about the same thing. The sheriff put up with it for a time, then finally grabbed him, for something else actually, but he got the care he needed.
What I find offensive about the whole story is that the news media thought it a fine thing to spray her name all over the country. For all I know, she may have been a pillar of the community until she made the understandable mistake of trying to live too long on her own. It is a shame to humiliate her so.
That is assuming, of course, that they find, by now have found, a proper placement for her and drop the charges. I hope she also got her pizza.