Eilistraeee is definately chaotic but in her original incarnation was she never neutral, not by a long shot. Her dogma is all about doing good to all, even evil Drow.
Its about showing kindness and compassion, showing that there is a better way.
With her absorbing Vhaeruns portfolio and essense, I don't see why her clerics would overnight all suddenly become ruthless plotting scheming intriguers. It just wouldn't happen. If a diety is influenced by her followers, then she would have a lot of very good hearted people who would still be good. Also, just because she's killed her nephew, why on earth would all his priestes suddenly start to worship her? If anything, I'd have said a lot of them would have scorned her for killing their god and try to find ways to revive him or turn to other evil gods like Mask who suits their view of life. Very few would return to Lloth and those that did would probably be killed anyway.
Also Vhaerun was a male deity and gave male drow a male role model to follow. Now he's dead, is it plausible that all these masculine drow suddenly get in touch with their feminine side and shrug their shoulders and start dancing naked, take up knitting and discuss childbirthing methods and begin baking cookies?
I don't think so.
And you are welcome for the compliment
