The adult filter precludes the need for "spoiler" blocking adult content thumbnails AND EVEN JUST TITLES from displaying without logging.
Default to Adult content not showing. If the filter is toggled, show content for the session or even just for the loaded page, still better than forced login to browse in a reasonable manner.
It's bad enough that one can't search or even browse for adult content without logging in, but now you're also met with no indication of what's in a link before clicking it when you're on a user's page.
Site still needs to be wider. Scrolling to browse content is not optimal, mobile-UI is cancer. Implement hotkey browsing (arrow keys), arbitrary content batch sizes (paged viewing and loading rate controls), default filter settings (such that you don't need to worry about changing filters BEFORE clicking inks)