People posting to completely inappropriate forum categories is very common. It has always been that way, and these miscategorized topics have always been moved. I estimate that the moderators move well over 20 topics per day, 7 days a week, and that has been going on for a decade.
The only thing new is that there are perhaps a few more people sharing the workload, which will improve the response time.
Yes. It was horribly unintuitive in the old forum and easy in the new forum.