@evan Really difficult question.
When we were in 2012, my main concern was that they erected walls preventing us to interoperate with our friends from our platforms (Friendica allowed this).
Nowadays, we not only need to have our own platform with our software to communicate with fellows there, we need our interactions to be preserved.
So, I am not for pushing them to support ActivityPub, so I can’t say "they should". We now have a strong core and appeal, slow & constant, that’s our strength.
@evan However, they now will come and are coming. Also, besides them, that we know what makes their agenda up to today (I see no change upcoming eventhough, in the absolute I want to keep space towards sthg better, that’s not what drives them now) there is nothing that prevents any other instance to have bad practice and behavior.
So, corporations, or not, we should find ways to improve the robustness of our interactions. I think Hubzilla had quite a strong model, I don’t know to which extent.