My brother has a condo and used to be friends with a crazy cat lady.  She didn't
live in the complex, but was a vampire as she slept all day and every night she
made it her mission to feed ALL the stray cats in town.  I met her and she told
me that she had 6 or so locations where she would fill up food and water dishes
for all the strays ("abandoned" in her words).

It seems compassionate up to a point, but she had crossed the line into mental
illness.  She had no job and spent all her husband's money on expensive cat
food.  Nothing less than a mixture of Purina One and Science Diet was suitable
for them and when I was visiting she actually took MY bottle of purified water
and used it to fill their bowls!  That's right, the tap water wasn't good enough
for starving homeless kitties.  And neighbors complained about all the cats, and
I could even smell cat sh.t and my brother even got a notice warning him not to
feed the strays (she was using his front porch as an operational base, thus her
"friendship" with him).

And this was last year, last month I visited again only to see dozens of new
feral kittens running around, the cats she so compassionately cared for the year
before had given birth to the next generation of unwanted and untamable wild
cats.  Animal control would show up and round up some of them, then she would
notice them missing and bail them out of the pound and re-release them!

What can be done about crazy cat ladies like this?  Compassion is one thing, but
she has become a public nuisance and actually made the problem worse by
"rescuing" the strays from the pound and allowing them to breed more strays.
I've got her full name, address, and phone number and am wondering whether I
should report her to animal control.  Feeling sorry for homeless cats is one
thing, but the neighbors have a right to enjoy the property they own without
cats sh.tting in their bushes or having their own pets exposed to whatever
diseases the strays carry.