My 2 cents.
It is going to be impossible to make everyone happy. I know for a fact it will absolutely not be possible to get what I want off of the shelf but this comes closer to anything I have seen.
I think the pluses far far out way any negatives.
If this where being made just for me I would only want in it what I am planning on using and nothing more. The reality is there is going to be a wide variety of wants. If I am not going to use a feature I would rather it not be there but I am not going to complain about it. The features I don't want I will either turn off or have the feature modded so it is not seen.
I would love there to be both Modder made and XenForo made add-ons out there most of which I will not be interested in.
There will be quite a few features I will want in XenForo that will not be there in a stock configuration but there will also be a lot of features I will simply not want.
If it becomes bloated I want it to be only bloated with what I am using and not with the items I will not be using.
I think the XenForo team is doing an absolutely fantastic job.
Again, it is going to be impossible for them to make everyone happy. I think the only way to make everyone happy is physically impossible. That is to custom make the software for each buyer and then the cost would be massive and then people that had a custom build will later change their minds on what they want.
I want slick, clean, and stable and to bloat it myself on my terms with only what I will use.
I am also starting to think I like Shelley's posts too much.
I really am loving Peggy's and Dragonfly's posts as well.