The incoming bug rate over the past 7 days is much lower than the past 14 days. Maybe this is a blip. But commits to trunk have begun to use 8-digit bug numbers that do not reference entries in bugs.mysql.com. I think something has changed but nothing has been announced. I like bugs.mysql.com. We all benefit by sharing bug reports and I contributed a lot of content. It is also easy to search (use "site:bugs.mysql.com" on google searches).
Assuming there was a change maybe it doesn't matter to most community members.