As someone who works in data warehousing and business intelligence I always feel the pain of developers thinking of data as an afterthought. Biggest issues are

As someone who works in data warehousing and business intelligence I always feel the pain of developers thinking of data as an afterthought. Biggest issues are always not all data is persisted and not all changes are tracked in the database. The means you can never do all the reports the business want and it is always a mission to explain to business that you cannot report off data that doesn't exist or not properly stored (referential integrity). My dream has always been one day developers will think of the data first :-).