I figure when they act weird about taking new clients on Keen, they are often more than open to taking new callers on their own site. (not always because some readers only read through Keen), but I've even been blocked on Keen and have been given the 'no new callers' message and when I visit their site, no problems.
Many readers try to increase their clientele and hope that you are willing to look for them, although it's always a guess. There is less they have to pay out of their own pocket once they have their own, but it's harder to get the word out unless they start on a popular platform (just an opinion).