I’m assuming this isn’t a private app? And you need an array column to assign two row owners (the user and yourself) as the owner of the row?
I don’t know to what extent a “banned” user could manipulate the data and override tab visibility, but as long as you are using row owners, they would only have access to their own data anyway. Never tried to hack tab visibility, but I think Mark felt pretty confident about it. Tab Visibility 👀
To be honest, a lot of what I say is based on assumptions, so take that for what it’s worth. This is all based on my experiences with using Glide for the past couple of years.