We do plan to separate the PM blocklist from the Ignore list.
That seems like busy work to me and a low priority. One simply needs to adjust their filters to see the public posts of ignored/blocked posters. I understand why it defaults to block public posts of people that are put on ignore from sending PMs.
This confusion was the reason I was sent to Jail ...confusion caused by Ihub Admin's advice to me over how to block a bunch of nasty and homophobic PM's from a member who is still going strong.