kolonel

syzygy

Endorse-Expand-Extingush or some variation. In essence you:

1. Adopt the technologies.
2. Expand within the community and inflate user interaction.
3. Cut off the free elements / monopolise the platform

You'll see loads of historic examples of this and various theories on how Meta intends to do it. Fascinating if not depressing reading.

For me, it was Destiny 2!