Patterns for ghost filter

[highend]

.* Affects files and directories.

f: .* Affects files only.

d: .* Affects directories only.

When I edit the ghost filter (it has only a one line) and enter any of the three example patterns from the help file,
nothing happens (after activating the filter)...

Shouldn't the first hide all files and folders?
Shouldn't the second hide all files?
Is the third pattern really correct (folders normally don't contain a dot anyway)?

What am I missing here?

[elqasar]

Those patterns affect files and folders that begin their name with a dot. So files and folders such as '.android' or '.ssh' will be hidden.

[highend]

Ah, ok, that makes sense. Thanks

[elqasar]

folders normally don't contain a dot anyway

Here are some folders in my user folder.

dotfolders.png