Q: I own a large apartment complex. I’m worried about the effect of an online message board on my business. Hosted by a large Internet service provider, the message board solicits input from tenants about housing issues, and there’s currently a string of messages concerning my complex, complaining about the rent, security-deposit return practices, and general management. Two posters have written rambling, flaming rants about our employees and business practices. This is very damaging stuff if it’s read by prospective tenants.