I can't find the post now but I think theymos mentioned that it was 5 in 2 months. It's been ~4 months now so perhaps it's up to 10 
. I was considering paying with grin for my bot account but it was just too much hassle to bring up my semi-cold wallet... ended up paying with BTC.
. I was considering paying with grin for my bot account but it was just too much hassle to bring up my semi-cold wallet... ended up paying with BTC.It was just an initial burst, there's only been one more since then. 6 out of 1166 total payments.
Someone just today reported to me that they were unable to send an amount with grin's 9-digit precision. It sounds like whatever wallet they were using only supported 8-digit precision. They haven't yet responded to my question as to which wallet it was. If it's a very popular wallet, maybe this has impacted people's ability to pay via grin.
I still think grin has value to lose since it's so inflationary. In early 2020, inflation will settle down a bit and apparently a GUI will be released, so that's a good guess at an inflection point. But inflation will still be a huge influence for a long time, so I'm not really expecting it to explosively "moon". For example, I think it'll take years to reach $20 again, assuming it survives long enough to do so.