Thanks for posting your feedback. As you know, this has been discussed many times and we have addressed it many times. The short and concise answer is that it is indeed a design decision. It's not intended that players max out every skill or collect/store everything along the way. There are many ways to increase storage but there will always be a limit. As for traveling, mounts will be introduced later in development which will help with travel and storage as they will have their own storage availability.

The VIP subscription will add additional player storage and perhaps additional storage in general. Again though, storage is intentionally limited.

Thanks again for your feedback!