Quite frankly, I don't see the problem. Dear Kyle makes a good point: would you prefer posters to submit two thousand word posts on a production? It seems a little, well, unnecessary. At least in the latter circumstance, readers can chose to click on blog links or chose not to. Personally, I don't read many of the longer posts on this site as they tend to meander. That said, there are a number of bloggers whom I do read because either I relate to their opinion or enjoy their writing.
Let's be frank: it doesn't exactly cost anyone to clink on a link that takes them away from this page...other than BroadwayWorld.com that is