I am not sure if this is particular to me, or maybe I am missing something about the changes, but since the switch to the continuous news feed style of problem dispensing, I have noticed that the site seems less rewarding and less social. Before, problems would have a focus for a week and in that time solutions could be posted and discussed with the knowledge that those problems had the stage, so to speak. Now it seems that once a problem is solved, it is more or less forgotten and it is on to the next one. Maybe this will change with time but I feel much less inclined to write out a solution when there seems to be less discussion. There are good things about the feed style such as having more problems to solve but it would be great if there exists a way to have a kind of stickiness for problems to promote discussion.
Another issue, and again I am not sure what is involved with this because I don't know how problems are chosen for each users feed, it seems that being ranked in the highest levels for a topic is a very lonely problem solving place to be at. There seems to be much less discussion and solution posting than there was in the old system. In the old system, level five people would still get problems that were shown to the lower levels and therefore correspond with users in the solution thread, but now I'm only shown problems that are deemed challenging enough for my level. They are definitely more challenging on average but it also makes a kind of barrier that previously didn't exist.
Are there plans to make search functionality on Brilliant?
Also, are the old solutions from the pre-news feed era lost to history? I put quite a bit of time into writing some of my old solutions but never thought to archive them on my computer, assuming Brilliant would hold onto them. Is there any way to get them back? Could profile pages feature the solution history of users?