The problem here is that many farriers get blamed for lamenesses having nothing to do with their work. Others get blamed for not fixing something that isn't a farrier problem. To further complicate the situation, much of the quality of a shoe job is covered up by the shoe. I don't recommend pulling shoes to examine a farrier's work. A Word of Warning If anyone takes the words written here out to the barn, evaluates their farrier's work by them, then gets high and mighty pointing fingers like an expert, they are likely going to get a snoot full of unsavory comments from their farrier.
Most farriers do the best job they can with the skills they have.
They are proud of what they do. They work hard, and quite rightfully get pretty bent out of shape when a layperson starts telling them what they are doing wrong. Remember, only trained farriers are trained farriers. Vets are not farriers. Trainers are not farriers.