This is wild to me, that they've gone through several couches and mattresses and that this is apparently a common-enough problem to warrant a dedicated blog. I've never checked the weight limit on a piece of furniture, and I do wonder how many popular retailers actually put that information front-and-center.
I've had my current couch 10 years, through multiple moves, and it's still going strong. I have a really hard time coming to terms with the mindset that furniture is something you simply must replace every year or two. I know that consooming is a big part of this thread and of other deathfat threads, but things like this really make your brain stutter to a stop. Furniture just isn't supposed to be disposable, you know?
But we're talking about someone whose partner says she needs life-saving surgery but is unwilling to lose weight even to obtain said life-saving surgery, so logic has obviously left the building. Or maybe they sat on it.