Hmm. After doing one of my runs through the forums I have the following feedback. I'll preface this by saying that, yes, I know I should have checked out Danbooru 2 before it went live, and given some of this feedback before it went live, but I just didn't have time. Oh and I'm sure some of these have been mentioned but goddamn 14 pages already.
Moderation-related
The most problematic issues for me are in aliases and implications.
1. Underscores are being automatically removed from linked tags, e.g. suzumiya_haruhi_no_yuuutsu. I typed underscores there, but when I submit there won't be any.
This no doubt seems trivial to others, but the problem is that 95% of what I do is copy/pasting posts into the batch jobs list to submit multiple aliases at once. Now I need to manually re-add underscores between every word of every tag I implicate or alias.
2. Lack of feedback when submitting aliases and implications. I could be missing something, but after I do one I:
• Often don't see any message for whether it worked
• Don't get redirected to the jobs page
• Can't actually find the jobs page anymore, or at least the one I try (/delayed_jobs) generally comes back with "something broke"
3. Alias/Implication threads no longer have the "Create" link at the top of the page. Many threads have more than one request in which case it doesn't help anyway and it was broken before Danbooru 2 so I always used the batch job page, but if it's been fixed (rather than removed) I'd definitely use it again.
4. Deleted posts link is gone. I used that quite a lot, especially when tag scripting a tag change, to make sure I caught all images. It was also a handy way of checking for images that might warrant a second chance at approval.
Other things
1. "Resize" option is gone. I loooooooooooved that. I don't really like the new resize option that shows a max-850px sample because it's less flexible. The automatic resize that matched my browser width was awesome, because I could always show originals and the occasional highres image that didn't fit horizontally would fit automatically. I desperately miss this feature more than I can put into words.
2. I don't know how to re-type an empty tag anymore. I think I'm missing something obvious. I also don't know how to make a tag General anymore. gen: and general: don't work. Before I would always make something general from the main tag list page.
3. Searching aliases/implications using wildcards does not work for me.
4. I rather miss the reply number column on the main forum listing.
5. Wiki pages don't show the six sample posts unless there's a wiki for the tag. I really miss this feature too, because it was a very nice quick way to get a glance of what was in the tag without actually going to the post listing for it.