Maybe I'm in the minority here, but I've seen a half dozen slide decks by GitHub about GitHub, and I can't remember a single shred of content from any of them. All I can remember is that too-familiar "I want those five minutes back" feeling whenever I get fooled into reading something banal and superficial. To me, that seems like an utter failure of slide design and composition.
A great presenter doesn't need slides at all. That's a good reason to emulate the presenter. It's a terrible reason to emulate their slides. Mediocre slides in the hands of a less-than-stellar presenter are a recipe for zzzzz. Make slides that don't need a great presenter. Make slides that don't even need you, that can be sent to people you don't even know exist and still convey your ideas well enough to invite further conversation. You might not get a reputation as a great presenter that way, but you will succeed in conveying information.
A great presenter doesn't need slides at all. That's a good reason to emulate the presenter. It's a terrible reason to emulate their slides. Mediocre slides in the hands of a less-than-stellar presenter are a recipe for zzzzz. Make slides that don't need a great presenter. Make slides that don't even need you, that can be sent to people you don't even know exist and still convey your ideas well enough to invite further conversation. You might not get a reputation as a great presenter that way, but you will succeed in conveying information.