directors buying shares

Here we go again the 2 main directors have put notice that they have bought shares in their company .Is this to stop the price sliding?. Well tell me why else would The 2 directors who owns 41,500,000 shares each want to buy another 115,000 except to prop the price up. oops forgot to mention that the price slid from $3.50 or there abouts to under $2.00 and that wrote off over $60million each