Would you still recommend to friends to buy Bitcoin?

I used to recommend it because it is simply "the biggest crypto currency," so what can possibly go too wrong?

However, now with Microstrategy looking more and more like a ponzi I'm worried that once they blow up I might regret my endorsement

Personally, no. There better risk/reward investments out there imo 

Unfortunately though Microstrategy blowing up and having to liquidate a bunch of BTC would cause every other crypto to come tumbling down with it 

:(