So I saw five operas this season from the ''handrail obstructed'' sections. But in the words of Ian Curtis, ''They keep calling me.'' They want me to make a donation (because tickets do not cover the costs, etc.). Like Andy Warhol said, why pretend you are poor like the trust-fund slackers? It's much more fun to pretend you're rich. So, finally, I donated $1,200 on my Discover Card, the card that gives you back. Now I'll be listed in one-point type on the donors page of the L.A. Opera production of ''Porgy and Bess'' program.