social media is the best promotion to become more famous but i think facebook still didnt accept this but i seee alot of advertsement on youttube more related on bitcoin and cryptocurrency and investing so i can say that bitcoin has a real future in our economy and cryptocurreny or called altcoins is same like bitcoin it will become more famous soon.
Here is my opinion about this:
1) Facebook has just banned advertisements about crypto. They do not have restriction on users sharing information about bitcoin. In fact most of the promotion for bitcoins so far has been done by users only and that is all for free.
2) Bitcoin never had the need to get advertised on any social media platform.