Well there is also a problem with people who don't want to say no, and don't want to stop working on their project when it is finished. Adding all the features

Well there is also a problem with people who don't want to say no, and don't want to stop working on their project when it is finished. Adding all the features that appease a different 1% of your user base is what leads to the bloat - and it still is bloat when 90% of your users will never use the functionality that externalizes all kinds of leaky abstractions and other costs onto them. Just because that bloat may happen to your successor as well doesn't make it right in either case.