That's one way to look at it; otherwise I just kinda apply the Transformers principle that the body's essentially just readjusted itself to accommodate the different configuration
Depends on what you search for against the constantly increasing volume of others that encroach in the same space. It will always be easier finding one thing if there's only 20 others like it versus 50, besides that algorithms are perpetually adjusting with differing priorities over time.
But yes, quite a lot of sites have to step down a touch to essentials when they're doing a fundamental under-the-hood overhaul instead of a largely ui update because it's magnitudes more likely to break everything else layered on top without stripping them out and rebuilding them to the standards of the newer underlying format. Code is horrifically finicky like that, no matter the amount of experience behind it (aka why bugs are hyper-prevalent in games no matter the time)
If you spend 10 years making something, that's also 10 years of gradually learning a better way to have made it in the first place, while still wanting to add more things. Eventually you have to decide if you want to keep building on a shakier, messier structure or rebuild with something cleaner (especially with the absolute paradigm shift in social media's growth in that time) making for less maintenance later. The caveat is the longer you keep a certain thing a certain way, the more resistant others will inherently grow to the idea of a change, which is never a surprise.
At the same time often you have to look at your internal analytics and decide whether something is being used enough to justify continuing to spend resources on it, especially when an exact function may actually be only used by a particular minority even though they might feel so invested they believe they're the majority. Not only that but the frequent disconnect between what you always see behind the curtain vs what everyone else thinks exists behind it.
And I've been here for ten years, suck it up. It's still doing the essential job its meant to do and has been doing. Thousands of people can say something but that doesn't mean results will come in the order or form they're received, doesn't mean they'll be helpful if they're thousands of different things, and are worth approximately nothing other than going straight to the bin if they're used without pointing to an actual, specific function.