I tried my hand at pirating using a similar tactic... asking for 'donations' to certain causes. I took the time to explain my causes. It went well, mostly because I didnt ask for a whole lot (100k - 250k) ... didnt figure on gettin greedy while perporting to back non-profit causes, lol...
The funny thing is I did it in an unarmed gunship (well no guns except a single lvl 3 debilitator for shuttin down the tradelane). That was some fun pirating. Well, until some hotheaded merc decided to persecute little ole me, without regard for my inability to defend myself...
... But I digress... personally I'd say that a pirate can be extra polite but in the end, its a pirate... can't expect em to take no for an answer!