Is it safe and reliable to just wait for the site shutdown and automatic transfer to issuer?
(Site is very laggy and I can't transfer without 2factor, would rather not bother with it. But I have a huge number of shares I would like to keep.)
I don't know.
I don't know Ukyo. There are valid concerns it seems with BTC withdrawl via weexchange so his reliability has some question marks around it now. He claims to be very very busy so will he have time to transfer all shares back to issuer? If it's a simple process on his part yes I think he will do it in a timely manner. If it's time intensive, you could be waiting a long time for your 'auto tender'.
NB 'All transfers to AMC-TENDER must be completed by UTC November 28, 2013. Only transfers to AMC-TENDER will be transferred to a new exchange.'https://bitcointalk.org/index.php?topic=297543.msg3492434#msg3492434