What do most WS directories have in common?

Most Web Services directories have one thing in common: they are totally bugged at the point of being totally unusable. Indeed I have tried to submit the Lokad Forecasting Web Services to several directories. Namely:

It’s almost unbelievable that so many top-ranked web sites (try web services directory on Google) are not even able to achieve something as simple as a registration process.

On the positive side, I have found wsfinder.jot.com which is by far the most usable WS directory out there IMO.