I'm still on 2014 but I'd have the same question for 2015.
I've heard a rule of thumb before that the number of warnings in a revit file should be limited to 1 per MB. So in trying to play by that rule, I've been looking very hard at what errors/warning I can resolve easily and which ones I may let go.
First question. Is there a list anywhere that show something like the order of importance of warnings to help you figure out which ones should be fixed first.
ie Is it better to spend the time first to delete duplicate objects before you remove redundant rooms for example. Currently I'm having an issue with objects that have duplicate mark values (both mark and type mark). I have about 150 of those in a model that's about 275mb. I've got about 300 more that involve room separation lines overlapping themselves or walls and revit wants to ignore one. And then I have the "Highlighted walls overlap" warnings. I know what they were from. I have someone that loves groups and made a bunch of them and there's parts of a common wall within the group. Ungroup them and clean up all the walls, these go away. And then you get the "slightly off-axis" warnings. I wish there was something that would allow a user to simply check a box when that warning comes up that says "Nope, it's not off-axis, that is what it is."
So that's what I'm trying to figure out, what should I clean up first.
Second question, should I really care about the number of warnings in a model?
Thanks in advance.