The problem reported here and by other users is because "Don't allow ignore users to post any of my threads" isn't a core part of the version of the forum software we're using, but rather an add-on.

As such, one of the services we allow to make it easier for those on mobile devices (such as smartphones) to access our forums -- Tapatalk -- doesn't support this add-on. Tapatalk doesn't have a lot of the features that our desktop version of the forum has (such as the ability to give hugs to other members), but it was decided when we added it that it was a fair trade-off. We'd rather have more people be able to easily access our forums from any device -- sans a few features -- than to have them not.

So the feature of not allowing people on your Ignore list to post to your threads should be considered to be only part-functional at this time. It'll work much of the time as intended, but not for members who access the forums via Tapatalk to post. They'll be able to get around the restriction.

We're looking at ways of fixing this long-term, but all of them are very involved and aren't likely to be implemented any time soon. I know this isn't an ideal situation, and we're very sorry for it. But I did want to let you know what was happening and why it was happening.

Best,
DocJohn