It seems that Harnu needs some solution to deal with spam.
I agree.
I've been on here for a few minutes (my first few) and I already see some. Maybe even a basic text filter will work for now...
It also has something wrong with signins. I signed in under my Twitter ID earlier and now I cannot access the account I set up, so I had to log in using another means. My Twitter account works fine outside of Harnu. I also have noticed spam.
Even after just 5 minutes after signing up I noticed this travesty of an issue!