Yes, that is useless. The "power light" test. Most of the ones I run into seem to be just junk they don't test and honestly, they probably don't understand how to test it, so I'd rather they don't.
The crazy amounts they think the stuff is worth is the most frustrating thing. The article was written last night after I had a guy contact me with a Model III, no power (at all, he admitted), covered in grime, missing broken-off keys, and the grey paint completely worn off the whole wrist area (common). I was feeling nice since it's the holidays and offered to pick it up from his house for $50 since I enjoy restoring them. I thought I was being generous, but no... His response was that one just sold on eBay for $300, and he only wants $200! I know to just stop the conversation right there because we are too far apart. The lack of response set him off where the text messages got more and more insulting (with me never responding at all after he gave me the price). I am the bad guy here somehow... trying to rip him and his family off. I just had enough...
When I do sell something, I really try to be completely honest about the exact condition. If it's broken and *I* can't fix it, it's some custom chip I don't have, and I'll tell you that it's just for spare parts and I've tried everything. Actually, I usually just give that stuff away. If it's working, I sell for a fair price off the bat. For selling, my pet peeve is when the very first question is "What is the least amount you'll take for it?". My answer = The price I asked for. If you don't like my price, don't contact me. It's the same reason I don't try to contact you if you are asking a silly high price - I know you won't want to hear about it.
