I remember a while ago runs had to be streamed to be accepted, but I don't see that rule here when I click "show rule" here, was it removed or is it just not in the rules here but still a rule?

Streaming is only required if you want to participate in tridashies Pony Frame event, if you want to submit a run in general without participating in the event a recording of the run is enough.

For the SRC leaderboard, no streaming is required in the first place, just make sure you save and link your verification file in the description. Only the $2000 event one requires streaming.