Tile size matters to me, as I tend to ignore projects requiring large tile sizes (and large asset sizes in general) as they usually require more time than I can commit, and are often associated with styles I'm not interested in doing.
Style is just as important as size though, and I completely ignore project posts that don't include indication of the style they're looking for. If someone doesn't communicate that sort of thing in their post, then there's a good chance I'll have a difficult time communicating with them during the project, and I don't want that hassle.