Monero leads to OPSEC oopsies. While this may be getting fixed, Monero gets attacked because its security is that of swiss cheese right now.
Discussion
It's not Monero that leads to OPSEC oopsies, it's the lack of knowledge, because Monero is the easiest currency to avoid making mistakes. Compare the difficulty of having good OPSEC with Monero or with Bitcoin, they are two completely different worlds. With Bitcoin, you have to be much more careful not to make mistakes.
It's understandable to have OPSEC mistakes in BTC thanks to the transparent blockchain. However, you must be a special kind of stupid to screw up your OPSEC with XMR.
Can you explain? What kind of oopies do you expect?
This explains it much better than I can:
Still not as many oopsies as Bitcoin.