I think the Profile Tabs such as Blog, Gallery, Files should not appear if there is nothing to show in them. (The user has no blog posts, gallery albums or files uploaded for example)

Like, but it may result in some confusion.

They already do it for about me so it'd make sense.

Whether or not 'about me' is set is readily available information when pulling data for the member, other data would need to be actively queried for to see if it's available. Right now it's only queried for on demand when you click those tabs. To add the additional querying into the main page would increase the resource usage, when it's likely most people aren't even clicking those tabs anyway.

Yes, Michael is right - the reason those are in tabs to begin with (rather there being a full overview page) is because fetching all that content at once can cause resource problems.

Ah, makes sense. Thanks for the insight!