Re: dynamism and lag, one thing that really makes me suspicious is the cycling of the tab title. Something is looping in the background after the page is done loading. I'm no web developer (I do python cantrips, mostly) but I might poke around myself. What do you use for profiling?
By topbar I think I mean the app bar. The one across the top. I would prefer if, on widescreens, it were placed along the side (where the foldout menu appears, perhaps) in order to maximize available vertical space. That's an aesthetic preference, though. I do really like that it doesn't chase my scrolling down the page, or pop up whenever I scroll back, like some sites I could name. Thank you for that.
Is there a documented API for the site, by the way? Is it in principle possible to develop a native client?
I thought that instead of everyone having to create a separate post for their first impressions, it would be more convenient to create a single post for this discussion. I'll post my own here soon.