Google+ was a product trying to break into a market where the market didn't really need another product. Threads is obviously looking to take up the mantle for where Twitter is dying, and people are actively looking for a Twitter replacement. So comparing Threads to G+ is just not a good comparison.

I read a horror story on Slashdot about a user losing their Gmail account because of some issue on Google+ and that was it for me. I stayed away. My email account was too precious to risk.

Threads is being bootstrapped off an existing billion user social network and completely aligns to Meta's core values and business model.

It's pretty much the complete opposite of Google+.