I have a question about domain names and incoming links

[denvercardonations]

I have noticed that domain names with lots of inbound links get squatted on. But, doesn't Google somehow "remove" the power or relevance of the incoming links if the links have been broken for too long? I sold my JohninJapan website awhile back, but the travel agency that bought it preserved none of the URL structure, and there were thousand of deep links, because it was a Japan photo blog. So, if you purchase a domain to work with are all incoming links irrelevant except for the main url?

 

[Certified]

I don't think they are irrelevant.. You could redirect the deep URLs or create new landing pages on them