"Fundamentals" are things like: there's no identifiable data model, the code is pure spaghetti and structure is a fleeting concept.
From my very quick scan of their code, it's readable, the parts of the data model I looked at are fairly obvious (thanks Rails), dependencies are identified, crypto seems fairly localised. Correction of bugs seems definitely doable. Extra features shouldn't require a total refactoring. Looks good to me for an alpha drop.
Next up: posts criticising the spelling in the comments in the Diaspora code.
