Interesting. I ran a lot of FT8 over the Thanksgiving holiday (because I could do it 'Armchair Portable' via Teamviewer and still be actively engaged with the rest of the family) and did not encounter that. Honestly, I don't know how you COULD be crude/rude on FT8 since there is zero human interaction.
I suppose you could still plop down on an ongoing exchange and muck things up a bit, but anyone going to that much effort is probably a lid regardless of mode.
I'm certainly not going to convert to FT8 full time, but it was a good way to occupy some time this weekend - and I DID work South Africa on 17 meters using only 40 watts.
On Mon, Nov 27, 2017 at 1:06 PM, Jerry n9avy@...  wrote:
" Have you tried the wunnerful FT8 yet? I ran about 200 contacts and went back to PSK. Encountered a lot of crude and rude ops on FT8."