Towards widespread moral hazard?

Central banks are conducting an increasingly aggressive monetary policy: purchases of government debt, then private sector - including poor quality - debt, control of long-term interest rates, perhaps share purchases in the future, etc. This enables them to control long-term interest rates and credit spreads, and perhaps later share prices. Of course, monetary policy is becoming more effective, but there is widespread moral hazard: There is no longer a limit to fiscal deficits, since long-term interest rates are stabilised; Investors can buy risky assets (corporate bonds, shares, etc.) without fear, since they are insured by central banks. This widespread moral hazard will inevitably lead to a continual increase in public debt and excessive risk-taking by investors, which can only end in a crisis.