If the question is, is it alright to grow out seeds found in bought pot, the answer is, it depends on the bought pot. Just like dogs and younguns, it's all in the blood. In this case, the genetics. Seeds from good smoke will have good genetics.
Last Spring I was running low on my smoke, so I picked up an oz in March, then another in April. Both sacks were compressed pot, but pretty good. I planted some of each, calling them Bag Seed Testers 1 & 2. I finished with 2 males and 4 females of BST2 and 2 females of BST1. One of the BST2 males was 8 feet tall, 10 feet wide and stunk to high heaven. I named him Big & Stinky and used him to make some crosses. With both BST 1 & 2, as well as one of my strains. I made several strains from the two sets of seeds. Peach, Rotten Stinking Bastard, Little Sister, Prickly Pear, Hurricane Head FP, Hurricane Head GN, and Big & Stinky X CP1. Then in my Spring crop, I made Powernap X Sinmint Cookies X B&S X CP1. I have some of those, as well as all the others going now. The Peach and Rotten Stinking Bastard turned out to be my biggest producers last year.
When growing any seeds, assume they are going to be good. That is to make records of start times, sexual maturity times and flower times. Also treat each plant as separate from his or her brothers and sisters. Label everything, so when you decide on keepers, you know exactly what it is. Don't be afraid of pollen. The outdoors are big. You can have several small patches and do some breeding. Then when you do buy some good seeds, you will be able to make enough for you not to have to buy seeds.