dyceskynes
I have had my card since August and pushing around 4k, never had an issue since. I'm sure you will be fine for gaming and mods. Hardcore benching is where I think you would see some of those heat issues.
Same here. I have had my 1080FTW for just over 6 weeks, and have been pushing it pretty hard. No problems at all.
I will say, however, that the first thing I did after installing the card -- before running any games or tests -- was to setup a custom fan curve (25% to 32C, then straight line to 70%@65c, then straight line to 100%@75c). So it has always had the fans running except when truly idle. I also have a big case with a lot of air flow. YMMV.
I have since switched to the "slave" bios, which makes the "minimum fan speed" about 1050rpm (roughly 30%). That minimum cannot be overridden in software (i.e., if you set something lower than 30% in Precision or Afterburner, it still runs at 30%). The rest of my custom fan curve still works as before.
I also do not have a dire requirement (or really, any requirement at all) to run Furmark for two hours with very low fan speed. But I have run "MSI Kombuster" and "EVGA OC Scanner" (with my custom fan curve) for several hours each. No crashes, no artifacts. No problems in Witcher3 or SkyrimSE either, running at 2560x1600.
Really not sure whether I will bother with updating the bios or installing the thermal pads. I have pushed the card enough to have confidence that there are no issues, at least with my case and custom fan curve. There is a 3 year warranty, so until or unless I actually have a problem -- I am going to ignore the drama, sack up, and live on the edge. :-)