Can you just make this easy for everyone, then, and create your own instance (which hosts the account from which all your heavy posting will come), and use your other accounts for whatever else you might want to do.

This:

• enables users or instances that may want to not interact with you to enact that effectively

• allows you to see posts from and post to every instance and community which reciprocates a desire to be connected with you (or at least which doesn’t want to not be connected with you)

All without putting the burden on others for your excessive account creation and posting.