I wonder if perhaps people have different ideas of "climb" and that may be leading to some of the tension. If you have branches that are mostly horizontal but do have a slope on them, the toads will climb those. In my tank, I have vines, and one out of the tree sometimes climb those. That same toad will climb on my waterfall decoration. The other two could care less, but do spend part of their time out of the water and on the pieces of land. The way tree frogs climb is, obviously, completely different.

I have really nice size Malaysian leaf frog, which is a terrestial frog, but when it's storming outside and the humidity in the tank is right and he is craving a female, he climbs over everything. This has made me aware that even though he's terrestial, as soon as I move into a bigger place and settle in, I'm going to get him a larger tank that is not only longer, but taller too.

And as for the frog bug....two years ago I bought my first frog and now I'm up to 8 frogs and 3 toads, and I'm getting 2 more toads soon. So that's what you have to look forward to. :P