Home page:

- The log-in container is too big, up to the point it hides the website's name.
- My browser is set with a zoom of 125%. Reducing it to 100% I discovered there is a menu bar on the left. (I'm surely not the only with a zoom set over 100%)
- The homepage should be more descriptive of what the website is about.

Just minor things concerning the design but visitors only give a few seconds to check if the website is interesting to them, so you only have a few seconds to convince

Internal pages:

When I visit a user's profile (in example members/thisal/) I can't see the update posted despite there is one. Even clicking on the "Activity" tab where I guess it should be located?
To compare with Twitter, when you visit a profile you can see the tweets posted directly on the URL profile. With MoonBuddy.io I have to look where things are located.

The UI is fine generally speaking but you should install a Light theme. While dark themes are popular for some, there are others who don't like it since it hurts the eyes.

There are no pages like "privacy policy" "FAQ" "ToS". I think it's important (especially the privacy policy which is a must)

Is it a custom script or?