If I built a platform that leveraged the name brand of another with a similar purpose, but charged for it when the original was a well-respected community tool,

If I built a platform that leveraged the name brand of another with a similar purpose, but charged for it when the original was a well-respected community tool, it would not be seen as good form. SoundCloud.help, say, a platform that leverages SC’s reputation in the DJ mixes community to advertise a platform for algorithmic audio compilations would be received rather poorly. If grep.help was some newbie-friendly url shortener for grep documentation or examples, I think we’d be more enthusiastic.