I say "yes" they pose a significant danger. While I have not hit any yet, I have seen them near I-40 in Little Rock, Arkansas. On my way home a couple of weeks ago there were 3 large wild hogs standing in the median (which means they had already crossed 2 lanes of traffic) where the speed limit is 70 miler per hour. Had anyone hit one or all of those pigs at that speed it would have been trouble.

Most folks I've talked to down here in the Hill Country don't sweat the hogs as much as the deer. I haven't hit one yet, despite some close calls, but everyone I know who has tells me that they just roll underneath. Of course almost everyone I know drives a truck or large SUV... I wouldn't want a 200lb boar rolling under a Civic or Camaro... much less on a motorcycle.

As with most vehicle-wildlife accidents, the bigger problem is usually caused by efforts to avoid the animal rather than the actual impact.

Gee, nobody ever has problems with feral pigs on the highway. That's until someone issues them radar guns. Then they become a really big problem.

I live in a county adjacent to Jefferson county. I give you any number of folks who have hit hogs! Me included!
If you're not driving at least a 3/4 ton pick up, you're asking to get hurt. My wife and I both drive 1 ton dually's. I watched a herd of ferals cross the road in the dark. As I approached there crossing spot, a piglet (squashed flat!) crossed with a sow of 125/140 pounds right behind! I never felt the piglet, but the sow rolled under the vehicle and I felt the rear of the 1 ton Dodge dually was raised off the ground!
I've seen "several" vehicles with the front end torn up because of thosr beasts!

Hey GERG! Thanks for your concern. No, weren't us'n's! Well, not this time anyway!
Throughout southern Ok, driving at night is hazardous between deer, hogs and cattle!

I haven't heard of many people hitting feral hogs. But deer? O yeah, plenty of times. God gave us brakes, so why not use them?