It should prolly be stated that it is extremely difficult to close (with good justifications) 90-95 percent (let alone all) of the bug reports and tickets, even if new submissions are temporarily frozen. That goes for most kinds of software, let alone entire operating systems. Doesn’t help that manpower is still somewhat lacking for a project of Haiku’s scope. Expecting R1 within this year or within the next 2-3 years is unrealistic, barring perhaps a large influx of new contributors.
Despite all this, the work achieved so far and for so long by such a small group of folks is still very much commendable.