This trick is related to the titles of posts, files (apps/mp3/images), polls and shows how to make them empty.

In order to perform this correctly, you must use an Android phone or a computer. You can also use any other device, provided that in the below text there is nothing displayed between the ! signs and that the device supports copy and paste functions.

You must copy and paste the following:
!  !

The trick is there is an invisible character between the ! characters, which is not detected as being empty. After pasting it in the title field, remove the ! characters by moving the text cursor (either by clicking after the ! or by using arrow keys) and then pressing backspace.

If there are any extra spaces around the character, ignore them, they are there to make selection easier and will be removed when you post, leaving only the blank character.