I'm currently contemplating several options to deal with taint issues in the future, and thought that it'd be nice to have additional data on what issues actually occur in the wild. Unfortunately, only a fraction of taint-related errors people actually experience get reported, and an even more minuscule percentage of those are traced back to their source; there's also seemingly no convenient index of issues that we do know the root cause of.
To change some of that, I'd like to start collecting logs for any and all taint issues you experience, regardless of which addons are involved. For users, this is as simple as running /console taintlog 1 once, and then periodically visiting a website to upload the resulting taint.log file. For authors, this is another option to consider if you're getting taint error reports — you could send your users to the log-collecting website, which might eventually result in a solution for your issues.