> Apollo and Reddit do not appear to be business partners. Nor does Apollo seem to have any contractual agreement with Reddit, outside of the API usage agreement.
Sorry, I am confused what you are arguing here. If you think a usage agreement is binding they are certainly business partners. They may still be business partners or generally covered by tortious interference even if they do not have an explicit contract either.
This is quite a wide legal net by design - it is a "swing your fist and hit someone and their lawyers may have something to say about it" area of law, of course it's a wide net. You really don't even have to have an explicit contract.
Sorry, I am confused what you are arguing here. If you think a usage agreement is binding they are certainly business partners. They may still be business partners or generally covered by tortious interference even if they do not have an explicit contract either.
This is quite a wide legal net by design - it is a "swing your fist and hit someone and their lawyers may have something to say about it" area of law, of course it's a wide net. You really don't even have to have an explicit contract.