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The warning for too many nofollowed links is there because these links affect your SEO. Your page offers SEO benefits to your site. If you create a "hello world" page, that page will inherit some value from being part of your domain. It will receive further value from links to the page, social sharing of the page (tweets, etc) and so forth. The value of the page can be passed along to other pages, both inside and outside of your site, through links. The nofollowed links devalue any followed links on your page. If you want to use your blog to pass more juice to other pages within your site, I would recommend a comment tool that not only tags the links with "nofollow" but instead breaks the links so they appear as text, not links. To answer your question directly, YES, I think too many nofollow outbound links are a problem that should be fixed. If you don't believe these pages offer value to your site, you can ignore the warning. I think doing such is a missed opportunity.