shell_yes?/1 was not showing the correct message and always defaults to yes which is dangerous

lib/mix/pleroma.ex

@@ -98,12 +98,6 @@ def shell_prompt(prompt, defval \\ nil, defname \\ nil) do
     end
   end
 
-  def shell_yes?(message) do
-    if mix_shell?(),
-      do: Mix.shell().yes?("Continue?"),
-      else: shell_prompt(message, "Continue?") in ~w(Yn Y y)
-  end
-
   def shell_info(message) do
     if mix_shell?(),
       do: Mix.shell().info(message),

lib/mix/tasks/pleroma/user.ex

@@ -60,7 +60,7 @@ def run(["new", nickname, email | rest]) do
       - admin: #{if(admin?, do: "true", else: "false")}
     """)
 
-    proceed? = assume_yes? or shell_yes?("Continue?")
+    proceed? = assume_yes? or shell_prompt("Continue?", "n") in ~w(Yn Y y)
 
     if proceed? do
       start_pleroma()