Problem: when scrolling a long list, the header label of a column of data scrolls up out of view
Proposed solution: implement a feature where, for long lists, column headers (labels) are still visible (floating) as you scroll down.
Who would benefit: millions of people
More comments: this is a common feature on modern websites. example would be a table that includes country name, population, area in km, area in miles. but it's 100 lines long. so you scroll down & now you don't know which column is miles and which is km. you have to scroll back up & this degrades user experience. Think of freezing a line at the top of a spreadsheet in excel or google docs. this is the same principle, but of course implementing this on wikip will be more dynamic because a table is not the entire document on wikip.