The practice of not shaming or harassing over fictional ships.
No matter how taboo or even problematic the ship
may be a person who is
pro ship, or a proshipper, doesn't care and simply doesn't engage.
The term
pro ship was created on
tumblr (at the time called anti-anti) to respond to "anti ship" people who would tag a ship with the word anti before it and send hate in the tag.
Although some people, who still believe fiction doesn't affect
reality on a 1:1 scale, have distanced themselves from the "community" have taken new labels such as
pro fiction or faia, etcc. they still stand for the same things.
What pro ship stands for is to accept and not harass people who ship something different, even if it makes you uncomfortable but even more to stand against hate and harassment.
Some people
may not stand for that though, and they could be pro ship and still harass people. Those people are not really part of the community because they are part of the harassment problem.
Lastly, pro ship doesn't stand for problematic-shipping, many pro shippers
don't appreciate problematic or
dark content.
Example 1
Person A: Although I am proship I do not like to see (2 characters from a dark ship) as the age gap is too much for me.
Person B: that's ok! I'll make sure to tag this ship so that you will be able to mute the word and not see it around
Example 2
Person A: you shouldn't condone this stuff because it's
disgusting and wrong
Person B: I want you to know that i do not condone in any way this kind of behaviour
outside of fiction, please block me if you
don't like this works or pro ship people like me