Thread:Project:Support desk/user tool suggestions/reply

For 1 - see extension:ArticleFeedback. Was on Wikipedia (I assume you meant suggestions for the wiki, as opposed to suggestions for new mediawiki features), but the Wikipedians found the suggestions not very useful (Lots of non-sensical suggestions) and sorting all the suggestions represented more work then the benefit gotten out of it. (I think. I didn't entirely follow the debate).

For 2. I think some people are experimenting with something along those lines. See Vector_Navigation_Modification