I am, of course, an arrogant smartass :-)
I deal with this problem by being aware of it and by having the (apparently rare) ability to shut up. I also find it easy to go meta, so when I notice that the status layer of the conversation becomes tumescent and starts to dominate the subject layer, I adjust accordingly.
This works not all the time, but well enough so that I find it acceptable.
If it's worth saying, but not worth its own post (even in Discussion), then it goes here.
Notes for future OT posters:
1. Please add the 'open_thread' tag.
2. Check if there is an active Open Thread before posting a new one. (Immediately before; refresh the list-of-threads page before posting.)
3. Open Threads should be posted in Discussion, and not Main.
4. Open Threads should start on Monday, and end on Sunday.