While I agree about preferring trip reports being hosted on FT, I would rather have a link to the outside site as opposed to nothing at all. I realize it must take a long time to post a report on both FT and Airliners.net, for example.
I do wish people would give an accurate description of the report as the title. It helps a lot with searching and knowing what you will get when you click. Also, saying if there are pictures is always good.
But mostly, I am very grateful when people take the time to write us a trip report.