We've never compared ourselves to Trello, it makes me think that we could make the nestable lists more explicit and promote this note-taking use. As for how long we will last, it's always hard to say, but we won't take down the server, and in any case be assured that before that I'll help everyone to take every byte safely elsewhere, via zip, sql dump, csv, spreadsheet, plain html + css, written in clay tablets.. I mean, I'll be your export module, If you need me to programmatically push it to other service with an API I'll do it, trapping the contents of someone else makes me feel terrible.