Iga no Kabu Maru - No idea what it is.
Tokimeki 'Tonight' - The anime is a bit disjointed, bits and pieces of the manga from here-and-there. Something like Creamy Mami or Rose of Versailles is quite coherent and continuos when it comes to story and story arcs. The manga is better, and, there are better titles avaliable from the same author. IMO if they would stick with Ranze as the main character it would be just fine. Otherwise there is too much jumping around.
Hana no Lunlun - No raws, pre-Majoko Megu-chan...
If you are in Germany or Spain you probably saw a localization, a pretty bad localization at that. Then the pre-80 style is just too different. Many people would barely even recognize it as anime.
It's hard to get raws of the older animes, and even when they do exist it's hard to find people truly willing to work on them. You can try to recruit more people, but then the people you recruit expect to work on the 'latest and greatest' popular current shounen title and leave or refuse to work on older titles that are ignored or ridiculed by most groups.
As for the role of the fansub community, there's many reasons, some just do it for 'the love' of doing it and if it happens to be useful to fans, that's nice too, but not the focus. Sure there are pleanty who are in it just for the glory and status, but that has faded with so many groups out there.
And people who genuinely want to work on the older titles, come to the channel or post on the recruitment forum; we're set up to do pleanty of things more if we had people willing to do them.