Old saying "speed kills." Just giving common sense advice to people that want it.
All speed rated tires are rated for speeds of 70 + mph to over 160 mph. That is a rating, not a recommendation. And just an FYI, a repaired tire has no speed rating and you cars safety is only as good as your lowest rated tire/parts.
I have driven a car a stupid speeds too. I later realised my folly and changed my ways.
High speeds are for a closed circuit trak setting where the condition of the track surface, possible road debris, obstructions are monitored before each run or lap. Not so on public roads. You never know what you may encounter and the higher your speed the longer it takes to respond/evade or stop before something happens.
I went into the tire business in 1973. Retired in 2008.
Participated in the 2 largest tire recalls in US history.
The Last one as a Bridgestone/Firestone tire store manager and I was as a store manager privy to a LOT of tire information as well as my store replacing 1,000's of recall tires.
We (Bridgestone/Firestone Inc.) accumulated a lot of tire data from around the country.
Recording tires pressures on all 5 tires on millions of vehicles.
Tread depths, wear patterns, road damage, punctures, improper tire repairs. Poor vehicle maintenance, mis-alignment/worn/broken suspension parts.
The faster you go, the more deadly the results from accidents, no matter what causes them.
You not only risk yourself and family, but everyone else on the road as well.
Buckle up and watch your speeds. By slowing down you just take a little longer to get to your destination. Small price to pay for safety.
I watch the truckers going to speed limit here in California in the trucks lanes, and then the guys in a hurry cutting in and out of traffic. At the end, they either get there just a few minutes sooner or at the same time.
Steady gets you there, and with much less drama and stress.
Good luck with everyones trips. God be with you.