> For example, aspects of the API just don't work as expected, like for some reason search and mention endpoints do not have support for long form posts (>280 characters)
At the risk of sounding blunt, they probably fired the people who actually built the API at Twitter and it's now (internally) in maintenance mode. They very openly don't care about giving other companies data -- even with the new pricey API tiers -- or making the non-app/-website experience good at all. I doubt any of the new item types -- Articles, ordered media in tweets, etc. -- even have an API exposed.
At the risk of sounding blunt, they probably fired the people who actually built the API at Twitter and it's now (internally) in maintenance mode. They very openly don't care about giving other companies data -- even with the new pricey API tiers -- or making the non-app/-website experience good at all. I doubt any of the new item types -- Articles, ordered media in tweets, etc. -- even have an API exposed.