Getting caught is not just about OPSEC, but also visibility. The DOJ has limited time and resources, so will always go after the "big fish" and the cases that give them the best PR.

If you had two scenarios:

1. Great OPSEC, high profile

2. OK OPSEC, minimal profile

You're still at greater risk for scenario #1. When Ross Ulbricht did his Forbes interview and basically said "I dare the gov't to shut me down", he pretty much guaranteed they'd go to the ends of the earth to shut him down.

The only thing worse than committing multiple felonies is making the gov't look stupid or weak.