I have a LOT of websites there, and am in the process of moving them - this was the absolute last straw for us. I have set up custom 404 redirects so no issue, but we also discovered today that they are hijacking the https version of the pages too - and no simple redirect seems to work yet. Not a major issue from a customer standpoint, but it can be from Google's perspective from what Google reps have told me, so I am not happy about that.
This practice is costing them a long time customer - but I wanted to remind everyone that you need to set custom 404s, and check all versions of your site.
Your domain belongs to you - so does your traffic. Your host should not be siphoning off visitors just because they hit a typo when trying to access your domain.