My experience with G+ has been telling me that it just isn't catching on beyond a small group of my tech friends, and has indeed been fading in use.
Some solid competition in this area was needed, and I think Facebook has been feeling the heat, given some of the changes they've been making. That said, if G+ dies off, I don't think it will necessarily be because of anything that Facebook did. I think that most of the people who I know just don't want to maintain more than one "Facebook-type" site. This probably has a lot to do with why Myspace floundered so rapidly once Facebook gained momentum.
I've thrown out invites, and offered to invite a ton of people. Most didn't take me up on it. The ones who would've been most likely to join, had already found a way to join on their own.
Yes, but that's how it will be with everyone. The growth of a social network is driven by having lots of nodes to start from. Google+ doesn't have that; it has a core of techies. My invite is only once removed from a Google employee and then only because I asked my roommate before my Googler friends.
Some solid competition in this area was needed, and I think Facebook has been feeling the heat, given some of the changes they've been making. That said, if G+ dies off, I don't think it will necessarily be because of anything that Facebook did. I think that most of the people who I know just don't want to maintain more than one "Facebook-type" site. This probably has a lot to do with why Myspace floundered so rapidly once Facebook gained momentum.