Threads doesn't seem to be catching on — and X is losing some once-loyal users. Gen Zers share what they think is missing.

• Threads is struggling to retain users, and X is losing popularity among some Gen Zers.
• Two Gen Zers say social media is about building an online community with those who share your views.
• One tech analyst predicted the lack of interest in Threads last month.

A social-networking site can only thrive if users continue to share and consume content, and some Gen Zers say there are particular features that make or break an app.