MLC has provided such unique and informative posts that I have no objection to seeing those bumped, ever. I wish that the powers that be would group many of them into a special archive as he has provided significant scholarship to this forum. Any objection to those posts being kept available could only be ascribed to the drooling ravings of the knuckle dragging product of generations of incestuous relations between supposed humans and their family pets.
However, a lot of threads are either limited, topical, not particularly informative nor unique, and bumping those threads provides little benefit. Threads which have content or insight that is "evergreen" should be given the occasional bump or reference when newer members could benefit or when they relate directly to a current thread.
When someone new asks the perennial favorite, "How Do I Clean A Pipe?" without having bothered to perform a basic search I'm happy to give him links to the 50 previous threads that, surprise!, have addressed this very topic.
The problem with searching topics on this site is that most of the threads have not had tag words embedded when they were created, so the onsite search engine doesn't find them. Using Google search with pipesmagazine and the topic linked in the search window will work to locate those threads that don't turn up with the onsite search.
I hadn't known that that bumping threads was considered a breach of netiquette. Silly rule. Ignore it.