Well it is now 1730z and I have been on 10m JT65 most of the afternoon. Not a single spot given or received on 10m JT65. Yesterday was quite different.
I shall stay on the band for a while longer, but think the DX chances have gone for the day.
UPDATE 1818z: When not looking for QSOs, I usually monitor PSKreporter maps in the lounge on a different PC. I see that PU4ENY (Brazil) was spotted at 1358z calling CQ, although he did not upload to PSK reporter. So, there was just one South American logged on 10m JT65 today after all. G0VUH was also spotted. I am still active, but 10m JT65 is very quiet here.