Maybe the ones that are Blog links could have BLOG LINK in their titles so those that don't want to visit blogs don't waste their time clicking? There could also be a blog guide that people could consult if they wanted info on a specific thing.

Personally I like the non-transport content of TRs and I think this can be very useful; I tried to make my TR as informative as possible for anyone who might want to follow in my footsteps. Maybe people could be encouraged to post an intro paragraph about what the TR actually contains?