My immediate thought was ... Hmm, I wonder what this is? Is it like Twitter? Is it like Facebook? Is it like Mastodon? Is it like Instagram? TikTok? QQ? Pinterest? Reddit? Hacker News? How is it different? How is it new?
Then the first thing I saw was a paragraph of text and a sign-in form.
You are competing for people's attention, and while your platform may be wonderful, if you don't get people to try it, it will die unloved. The first thing you've done is given them a barrier, not a taster.
Now, you may not care so much, but recently I was talking with Steven Strogatz and he talked about one of the columns he wrote. He had shown his wife who said "It's confusing, I don't get the point, and people won't care." He replied: "No, no, it's wonderful! You'll see, I'll write some words and it'll be great!"
It wasn't, and it died, effectively unread. She was pretty much his exact audience, and he ignored her feedback. I'm sure you've spent a lot of time on getting this up and running, and you're proud of it, but if no one tries it, your time will be wasted. Given the existing presentation, I won't be trying it.
Then again, maybe I'm not your intended audience. But then again, maybe I am -- then it would be a shame if you ignored my feedback.