I doubt the dev actor left because he was trolled. If he did, that actually seems rather ridiculous to me, and I don't blame the trolls either.
EVE has been nurtured and fostered as a majority community of trolls. Trolling CCP is nothing new ingame. Dev actors get shot at, CCP fleets get smacked in local, and the forums are a cesspool... yet CCP seems to often encourage this behavior, oftentimes by trolling alongside players.
Why should they expect a pristine and perfect community in RP? I wouldn't understand why the RP community would be held to such lofty and strict standards by the very developers who have not only fostered this community, but also take part in it with their unofficial accounts.
If the dev actor ran away with his tail tucked between his legs because he got trolled in the Summit, boo-freaking-hoo. Grow some thick skin and put up your IC fisticuffs. If someone is really acting out of line, the Summit mods will step in.
Keep in mind I'm not defending trolls. I'm criticizing whoever that actor was for leaving 'because they got trolled', if indeed that is the reason.
I don't think the RP community should have to 'behave' any more than they usually do just because it's a dev actor.