Cliff is incredibly weak. Compare Moat: It gives +2 cards without the discarding, along with complete protection from attacks, and it's only $2. Cliff might be balanced at $1, but even then it's hard to think of a situation in which you'd want it.
Climbing Gear is too strong. Again, compare Festival: It also gives +2 Actions and +$2, but gives +Buy instead of all of the stuff this gives. Surely this stuff is much more powerful than +Buy.
If I keep changing my cards for you guys then there no longer my ideas. Then it’s not really my fan based expansion it’s someone else’s. Why do you guys think Donald doesn’t like adding fan based expansions to official expansions. Because it’s not the same! And I feel the same way!
This isn't the right way to look at it. Think of it this way: the ideas are yours, we're just helping you make them work. If an idea is solid it will still be recognizable as yours even after changes to balance it. Donald doesn't publish fan cards because the
ideas aren't his, but if you read the Secret Histories of the expansions you'll see how much his own cards were criticized and changed by others before they were printed.