sascha, I suppose very few users can comment ANY run since their knowledge allows them to see minor drawbacks and post promptly. Others (like myself) would just watch the run and say "okay", unless you make some great or on the contrary awkward shot or decision. Just my 2 cents, I suggest you just continue posting the videos (especially now when you have a better camera). In the past I learnt that probably we shouldn't give any expectations about what we post, since if the reaction is not as hyped as we expected it gives us initial posters a negative impression and makes us post such words as you just did
Please continue shooting your runs and videotaping and sharing them. That's something we couldn't even think of some years ago. Now we have such a powerful tool as sharing our runs. Sometimes it even causes sharing opinions. So just wait for them and don't feel bad if there are none for a while.
Mit freundlichen Gruessen