This girl is really cute and has a fun personality but unfortunately I don't think she's all that ticklish, especially on her feet. She used to say she thought she had very ticklish feet but once she started making tickle videos I think it became clear that they weren't that bad. I remember a Q&A with her on YouTube where someone asked her about it and she said she 'wished she was more ticklish on her feet'.
The impression I got is that she wants them to be because people are interested in it and she'd like to make good foot tickling videos, but it's just not the case. Videos of her her tickling other girls are super cute though. She's a great tickler, the other girls are more ticklish than her, and she has a lot of fun with it.