536
When you decide to have a cup of tea after a long day
(i.imgur.com)
General rules:
Exceptions may be made at the discretion of the mods.
Ease of use, apparently
But it's an extra step. When you buy a regular box of tea, all the tea bags are just in the box, not individually wrapped.
'Freshness' or other bullcrap
That "apparently" is the key here
That's why it there!