Both extremely valid and USEFUL points.
While it is understandable that Linkshells are not being changed at all, I would like to offer additional clarification on why I think the above are very valid points. We, who have played this game for a while, have a tendency to gather a wide circle of friends. Linkshells offer a wonderful semi-private chat channel to talk with people we may not get to socialize with otherwise. If the "semi-private" chat channel is limited then so is our opportunities to reach out and be a part of our community. More and more of us have had to turn off our Shout channels, thus limiting our communication even more.
TL;DR - Can we have larger linkshell limits please?