I only target feed my rhizo and dendro. I only rarely (every couple months) feed my RBTA's. Nothing else besides fish get fed. I just see no reason to add nutrients that aren't needed. It just makes nitrate and phosphate management more difficult.
The only corals I regularly spot feed are LPS. I Never feed zoas or palythoa. On rare occasion I'll spot feed my protopalythoa. My main coral food is mysis soaked in Zoecon and/or garlic. That said I do broadcast feed goldenpearls so some may get captured and eaten by the zs and ps.