Here is the thing. It will be more expensive to fortify your run later, after a predator has been eatin' your chickens, because then the predators will be seriously MOTIVATED (plus at least one of them will know that if you try hard enough, you CAN get into the run), and you will need to build a substantially stronger i.e. more expensive fence to have some hope of mostly keeping them out.
It is easier and probably more satisfactory to never let them get a taste of your chickens in the first place, i.e. build a decently safe run now, BEFORE anything happens.
I am sure there are indeed people in your vicinity with flimsy runs. What you have to ask yourself is, a) how long have they had their current chickens that way, b) how many chickens have they lost to predators in the past, c) do they have other deterrents like a dog or a household member who likes to sit around with a pellet gun, and most importantly d) do I want to assume I will never be less lucky than others. My experience is that there are any number of things in life that you can see lotsa people doing, but that if you try to do them yourself there is a pretty high chance something awful will happen. Keeping horses in paddocks fenced with a strand or two of barbwire; fixing electrical stuff without shutting off the breaker; walking out into traffic while looking the other direction... you get the idea
Predators DO attack during the day, sometimes -- the chances are greater in the dead of winter (when they're hungrier) and in late spring, early summer (when they have younguns to feed) but it can happen any time, really, and it only has to happen *once*.... Also, one of the likelier predators in many areas is a loose dog, which is at least as apt to be a problem in daytime as at night.
You can play predator roulette if you want to, with a weebly run, but if you read back thru the threads on the "Predators and Pests" part of this forum, you will notice a disconcerting trend for people to be quite satisfied with their own weebly runs, feeling sure that there are few predators where they live and none would attack during daytime, right up to the day they log in to post about a buncha their chickens getting killed.
Good luck,
Pat
It is easier and probably more satisfactory to never let them get a taste of your chickens in the first place, i.e. build a decently safe run now, BEFORE anything happens.
I am sure there are indeed people in your vicinity with flimsy runs. What you have to ask yourself is, a) how long have they had their current chickens that way, b) how many chickens have they lost to predators in the past, c) do they have other deterrents like a dog or a household member who likes to sit around with a pellet gun, and most importantly d) do I want to assume I will never be less lucky than others. My experience is that there are any number of things in life that you can see lotsa people doing, but that if you try to do them yourself there is a pretty high chance something awful will happen. Keeping horses in paddocks fenced with a strand or two of barbwire; fixing electrical stuff without shutting off the breaker; walking out into traffic while looking the other direction... you get the idea

Predators DO attack during the day, sometimes -- the chances are greater in the dead of winter (when they're hungrier) and in late spring, early summer (when they have younguns to feed) but it can happen any time, really, and it only has to happen *once*.... Also, one of the likelier predators in many areas is a loose dog, which is at least as apt to be a problem in daytime as at night.
You can play predator roulette if you want to, with a weebly run, but if you read back thru the threads on the "Predators and Pests" part of this forum, you will notice a disconcerting trend for people to be quite satisfied with their own weebly runs, feeling sure that there are few predators where they live and none would attack during daytime, right up to the day they log in to post about a buncha their chickens getting killed.
Good luck,
Pat