From a technical viewpoint, itís more difficult for the database to handle one ginormous thread as opposed to several, slightly smaller threads.
The VOG seems to be handling it okay...
I admit to not understanding why it would more difficult even though I have a history in the IT field.
Perhaps some code could make just the last few pages of a thread load unless someone specifically does a search or manually goes back through them thereby triggering the rest of the thread to load and be accessible. Kinda like an archive.
Again; I'm not privy as to why it's a problem but I do believe there is one from the database point of view.