merge: Update IMPORTANT_NOTES.md (!470)

View MR for information: !470



Approved-by: Amelia Yukii <amelia.yukii@shourai.de>
Approved-by: Marie <marie@kaifa.ch>
Approved-by: dakkar <dakkar@thenautilus.net>

IMPORTANT_NOTES.md

@@ -6,8 +6,11 @@ When using a service with Sharkey, there are several important points to keep in
 
 2. Even for posts made in private, there is no guarantee that the recipient's server will treat them as private in the same way. Please exercise caution when posting personal or confidential information. (Again, this applies to the internet in general.)
 
-3. Account deletion can be a resource-intensive process and may take a long time. In cases with a lot of uploaded data, it may even be impossible to delete an account.
+3. The "Drive" feature is NOT secure cloud storage. This feature exists for easier managing of your uploaded files.
+Any data uploaded, whether shared via post or not, will be publicly accessible. Please use 3rd party cloud storage providers if you need to upload data with sensitive information of any kind. 
 
-4. Please disable ad blockers. Some servers may rely on advertising revenue to cover operating costs. Additionally, ad blockers can mistakenly block content and features unrelated to ads, potentially causing issues with the client's functionality and preventing normal use of Sharkey. Therefore, we recommend turning off ad blockers and similar features when using Sharkey.
+4. Account deletion can be a resource-intensive process and may take a long time. In cases with a lot of uploaded data, it may even be impossible to delete an account.
 
-Please understand these points and enjoy using the service.
\ No newline at end of file
+5. Please disable ad blockers. Some servers may rely on advertising revenue to cover operating costs. Additionally, ad blockers can mistakenly block content and features unrelated to ads, potentially causing issues with the client's functionality and preventing normal use of Sharkey. Therefore, we recommend turning off ad blockers and similar features when using Sharkey.
+
+Please understand these points and enjoy using the service.