Don’t bother. They just seem to ignore those two stations, plus the Alt 92.3 successor on HD whenever they’re suggested, and pounds the keyboard for a mainstream alt that’s not coming back.
Because they're not Alternative. WFUV is Triple-A. And WNYU I don't even know because it's block programmed and musically all over the place, plus with their timeshare agreement with WFDU the OTA signal is off the air half the time.
My go-to stations for Alternative now are Radio Felician on the iHeartRadio app, Indie88 on TuneIn, Alt Nation and XMU on SiriusXM. But none of those are candidates for 98.7 and it doesn't even matter anymore.