The Charlotte Housing Authority estimates 10,000 people applied Monday for the Section 8 subsidized housing wait list – so many that it briefly swamped the website. The Charlotte Mecklenburg Library is helping applicants use library computers to fill out applications this week at www.charlottewaitlist.org. Applications will be accepted until 5 p.m. Friday. The last time the agency opened the list in 2007, more than 10,000 applied in five days. Called Housing Choice Voucher, the program offers federal rent subsidies to low-income people.