There's a company in my town that have been advertising for a C++/C# dev since I moved here (around 4 years). What are they thinking? 'Give it another 4 years a

There's a company in my town that have been advertising for a C++/C# dev since I moved here (around 4 years). What are they thinking? 'Give it another 4 years and we might get lucky'?! Also they post this job on job boards, which must be costing them hundreds a month. Something doesn't add up.