Exporting Twitter Content to a datastore as a service or other cloud based service, however, is not permitted.
Here's what Twitter's terms of service say, for those keeping score at home:
You may export or extract non-programmatic, GUI-driven Twitter Content as a PDF or spreadsheet by using “save as” or similar functionality. Exporting Twitter Content to a datastore as a service or other cloud based service, however, is not permitted.
Wow, Twitter's terms of use allow me to use my browser's "Save As..." feature.
How charitable of them.
So to be crystal clear on this...
It is okay for content somewhere else to be exported to Twitter.
...but...
It is NOT okay for content on Twitter to be exported somewhere else.
This violates idempotency.
*These Twitter policy changes specifically disallow uploading Twitter Content to a “cloud based service” (Section 4A https://dev.twitter.com/terms/api-terms ) and include stricter enforcement of the Developer Display Requirements ( https://dev.twitter.com/terms/display-requirements ).