That matches what I saw on the site, particularly whether the algorithm is doing anything useful.
My rule for possible to find now is simple: check how the mobile build compares to the desktop one on day one.
Ran that one alongside two other options for a month, tracking whether the search actually respects what you set.
If you're only browsing, the service is fine. The moment what you lose by never upgrading matters, it changes.
Before committing time to possible to find, work out what a search of your username turns up.
For a second opinion I also cross-checked Luvdate, which came up earlier.