[wpietri]

When GMail came out, it was well more than fine; it was a major advance. It had very strong word of mouth. These days it's fine, but that's because email is much less important. It still has a lot of usage for the reason I mentioned: because people still have to use email.

Facebook is similar. People were wildly enthusiastic about it. Some still love it, but for most it's in the "necessary" category. People keep using it not because of Facebook, but because their people are there. Very like LinkedIn in that sense.

If Threads is already only "fine" but isn't necessary, that sounds like the quick path to irrelevancy.