Someone who becomes good at something selling goods/services isn’t exactly what I would consider offensive. Consider the guy who did Mouse Trap Monday videos who is now selling his trap commercially: do you have any idea how long he spent testing and reviewing traps to reach a point where that was viable? I suspect he spent thousands of hours on this.
Level1Techs sell basically the only DisplayPort KVM worth a damn, that’s a pretty great offering to have. They don’t bring it up much but it’s there.