If you copy a Twitter link, an additional link appears at the end.
If you copy a Twitter link, an additional link appears at the end. You can delete the part after the question mark. Usually, additional links are created by whom and in what way. Used to record whether the link was taken Originally, only S=19 or S=20 were attached. It appears to have been recently added.
The excerpt is quoted from a public Telegram channel, which owns its text.