Social Media Downloader C# (dirty code, hobby project)

getlinks.cs

public static List<string> GetLinks(string message)
        {
            List<string> list = new List<string>();
            Regex urlRx = new Regex(@"((https?|ftp|file)\://|www.)[A-Za-z0-9\.\-]+(/[A-Za-z0-9\?\&\=;\+!'\(\)\*\-\._~%]*)*", RegexOptions.IgnoreCase);

            MatchCollection matches = urlRx.Matches(message);
            foreach (Match match in matches)
            {
                list.Add(match.Value);
            }
            return list;
        }

gfycat.cs

        public static void gfycat(string link)
        {
            WebClient wc = new WebClient();

            string fileName = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\rarepepes\" + (link.Replace(link.Substring(0, link.IndexOf(@".com/") + 5), "") + ".gif");

            WriteLine("Downloading... " + link, 1);
            if (!Directory.Exists(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\rarepepes\"))
            {
                WriteLine("Directory doesn't exist", 3);
                Directory.CreateDirectory((Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\rarepepes\"));
                WriteLine("Created", 1);
            }
            wc.DownloadFile((link.Replace(@"http://gfycat", @"http://fat.gfycat").Replace(@"https://gfycat", @"https://fat.gfycat").Replace(@"http://www.gfycat", @"http://fat.gfycat").Replace(@"https://www.gfycat", @"https://fat.gfycat") + @".gif"), fileName);
        }

imgur.cs

public static void imgur(string link)
        {
            WebClient wc = new WebClient();
            if (link.StartsWith(@"http://i.imgur") || link.StartsWith(@"https://i.imgur"))
            {
                string fileName = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\rarepepes\" + (link.Replace(link.Substring(0, (link.IndexOf(".com/") + 5)), ""));
                if (!File.Exists(fileName))
                {
                    WriteLine("Downloading... " + link, 1);
                    if (!Directory.Exists(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\rarepepes\"))
                    {
                        WriteLine("Directory doesn't exist", 3);
                        Directory.CreateDirectory((Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\rarepepes\"));
                        WriteLine("Created", 1);
                    }
                    wc.DownloadFile(link, fileName);
                }
            }
            else
            {

                WebClient wchtml = new WebClient();
                string htmlString = wchtml.DownloadString(link);
                int mastercount = 0;

                foreach (string str in GetLinks(htmlString))
                {
                    if (str.Contains(@"/i.imgur"))
                    {
                        string fileName = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\rarepepes\" + (str.Replace(str.Substring(0, (str.IndexOf(".com/") + 5)), ""));
                        if (!File.Exists(fileName))
                        {
                            try
                            {
                                WriteLine("Downloading... " + str, 1);
                                mastercount++;
                                if (!Directory.Exists(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\rarepepes\"))
                                {
                                    WriteLine("Directory doesn't exist", 3);
                                    Directory.CreateDirectory((Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData) + @"\rarepepes\"));
                                    WriteLine("Created", 1);
                                }
                                wc.DownloadFile(str, fileName);
                                Thread.Sleep(1000);
                            }
                            catch (Exception ex)
                            {
                                WriteLine(ex.Message + " | " + ex.HResult, 38808); //error in 1337
                            }
                        }
                        else
                        {
                            WriteLine("Already exists.", 2);
                        }
                    }
                }
            }
        }