To sum it up I think that people are leary of the slight imperfection in the glass. Even though it's not all the way through, glass has a tendency to expand once a imperfection has been established and a couple hundred lbs of water and possible gravel wouldn't help. Nothing would be worse than 200 gallons of water spilling all over the place so I think that has a little to do with it all. We all know that a 210 gallon tank with a stand wouldn't be still here otherwise. I personally know because I for one would have jumped all over it. Anyways don't worry because someone will pick it up.
To sum it up I think that people are leary of the slight imperfection in the glass. Even though it's not all the way through, glass has a tendency to expand once a imperfection has been established and a couple hundred lbs of water and possible gravel wouldn't help. Nothing would be worse than 200 gallons of water spilling all over the place so I think that has a little to do with it all. We all know that a 210 gallon tank with a stand wouldn't be still here otherwise. I personally know because I for one would have jumped all over it. Anyways don't worry because someone will pick it up.