I certainly understand how a weld works Bro. I worked in a manufacturing plant for 7.5 years, where welding took place every day, building aerial lift units valued from $400k to $2 million each, custom built for and supplied to the biggest telecom companies in the world. I also know that a weld can have small air pockets within the weld that are not easily visible to eye. I have worked with some of the best welders the industry has to offer, and I know a weld is never consistently as strong as a solid mold. That is my point. As well, most who desire a widened wheel, do so because it's cheaper than buying new aftermarket solid molded wheels. How many of them do you think would actually be qualified to properly inspect welds for quality and accuracy? Not many, I'm sure. So, they are taking risks with their lives, because it's cheaper, and someone else told them the welds were perfectly safe, and of good quality. Also, just because you have never heard of a widened wheel failing doesn't mean that it hasn't happened. As a matter of fact, it happened to a couple a members of this forum, several years ago. It was a major topic on this forum for quite a while, but I'm sure it was long before you became a member. We all have our opinions about things. Nevertheless, I believe you often get what you pay for. Life is too precious to put a dollar amount on it. Like I said earlier, I would never ride on a welded wheel. Nor would I ever recommend it to anyone. Now, if you or anyone else wants to take a chance like that, there's obviously nothing I can do to stop you. But, I will never promote using a welded wheel. It's too much of a risk, and I would hate for someone get hurt over something I suggested.
If you ever decide to go with a welded wheel on your bike...good luck with that Bro, and God bless.