This is a bit tangental, but... One problem I sometimes have is not knowing the status of things. E.g., you read about Associated Types, and then you go "hey, is this implemented now? is it being implemented soon? etc."
(Don't all rush in and tell me about ATs - I'm only picking it as an example. Others include, say, the GHC debugger, stream fusion, parallel arrays, etc etc etc.)
Maybe I'm looking wrong, but it often isn't obvious to me how to figure out the answer to the question "does all this cool stuff work yet?" I'm not really sure what we could change to fix that though...
the Haskell Community & Activity Reports were created in part to answer that kind of question. within the limitations of 6-monthly editions (too frequent for some projects, too infrequent for others), they have tried to do ever since November 2001, the latest dating from May 2007: http://www.haskell.org/communities/ since contributors are encouraged to look ahead in plans, as well as look back on achievements, the interval of not knowing where things stand is actually shorter than 6 months. provided that people remember to write and submit entries about their favourite haskell projects when the editor comes calling before November/May!-) claus