Nope. The fact that we can get one of those moles to match location is evidence. The mole fades in and out of his body, and lack of a visible mole is not a reliable piece of evidence to determine that it's not him. Two random people do not have moles at the same location, so the match of a single mole is evidence.
Find me an Elvis impersonator who has the same facial deformities as the real Elvis. The color and swirl of this guy's hair is also a close match. Not everyone has this hair, this crooked nose and this facial disfigurement between the eyebrows.
There is a sample of one person claiming to be this guy, and the assertion that we can look through thousands of people and get similarities is not a valid comparison. It is also not feasible to look through thousands of people and find ones with the same facial deformities and likeness.
Explain why this is "just a coincidence" please.
There is only one person claiming to be this person. This isn't a matter of searching through thousands of pictures and finding the one we like.
You are expecting us to believe this is the same person because of a few superficial features you think look the same?
As I said before, his ears are completely different.
The facial disfigurement between the eyebrows is completely different, they are curved in different directions!
One of their faces is much more gaunt than the other, skin tone is different, hairstyles are different, one has a mole over his right eyebrow that is missing on the other, one is covered in freckles and the other is not, eye color doesn't look the same, one has much wider nostrils than the other, eye shape is different, one has thicker bushier eyebrows, eyebrows are not the same color, spacing between the nose and upper lip is not the same, teeth gaps are not the same, neck wrinkles are not the same, missing moles on the neck.
If you want to cherry-pick a few similar features you aren't going to convince anyone.
As for why the guy who is claiming to be the other guy happens to look like the other guy? Self selection? I have no idea what this guys motive is, other than to fool gullible people.
If this guy is alive, why isn't he shown with his family? You would think they would want to see their dead husband/father. Why are they not claiming he's alive?
Honestly, the guy sounds like a nutjob. Talking in riddles and being all weird with mentioning memory wipes. I'm not sure how you think this indicates he's a dead seal member, it looks like someone with a mental issue to me.