Any overclock is always a risk...anyone engaging in the practice needs to realize running outside manufacturer specs is inherently dangerous and voids their warranty.
The Stilt hammered his chip intentionally pushing max core temps to see how the chip would handle it. I hope most people would never run a chip with temps in the 95c range. The OP stated he's maxing at 80ish...personally I don't think it's risking the cpu at that temp...but yeah overclocking always carries risk.
My recommendation to the OP if he wants to run a 24/7 OC would be to try and improve cooling...something like the NH 15 SE-AM4 or a 240mm AIO would likely knock a few degrees off.
Alternatively, as Phaaze stated above you, may find that improving cooling and tuning a good set of high quality 3600mhz memory will get you very close to, if not the same, performance as the manual overclock.