You're thinking that different people are the same people.
I'm wondering what you mean about 青春時代 and flower being easy to find. I think wherever you found them must not be around anymore, or you think that some links you saw seeing if they could be found were authentic, when they werent really. I tried a lot of different terms in a meta-search engine, and looked at every even barely relevant result, and searched around them more, but all I found was long dead filesharing pages, and fraudulent links that led me to ads for usenet subscriptions. If thats wrong, I dont expect you to point to where they can be found, but It would be good of you.
Youre probably gonna get banned when the admin comes back but you should relax. Music isnt like a community, nothing about it changes depending on who else knows about it. I like HASAMI because it conveys feelings and moods like ones I remember well, and sings about such things, but that I rarely see in other art. I post about it because I hope someone can post similar things, or point me to where to find 青春時代 or flower. And if they cant, sharing something nice with a small community is nice, and actually making posts to such places is important, if people just lurk it dies.