FlagTrail now has a web interface. If you don't know or forgot what FlagTrail is, here is a refresher. It is a Discord Bot that downvotes with all available subscriber accounts at once. Only 
Why also web?
FlagTrail was only a Discord bot. users need to register and manage their accounts using the bot. A few commands are a bit complex for everyday users. 
Website
https://flagtrail.herokuapp.com/
How to use?
Step 1:
Visit the website and click on Log in With Discord button. This will redirect you to Discord website for authentication. Click Authorize button there.
If you are not a member of FlagTrail Discord server already, it will add you to that Discord.
Step 2:
After authorization, you'll see your Dashboard. If you are new to FlagTrail, you won't see any accounts listed. it will ask you to add a new account. I already added 2 accounts using the Discord bot, I am seeing those. I can also add more or remove existing ones.
Step 3:
Let's assume, I don't have any accounts added. I need to click Add Account button on the navigation bar to get to add account page.
Now I need to fill out the form following the instructions below each field. You can also use this post. Please authorize the 
Step 4:
If you want to manage your account, click Edit button under each account boxes. Change the settings as required and click Save. Your settings will be live immediately.
Step 5:
If you want to delete an account, click on the Remove button, and when you see the confirmation window, click Yes.
You should revoke
Why it is not OpenSource?
I have plans to restructure the Discord bot and the web interface into one repository. I need to do some changes to get to that position. That's why the website is not open source yet. The Discord bot is open source and you can find it here.
How to get support?
If you face any problem, please reach out to me at Discord reazuliqbal#1149 or any other SFR moderators.
Huge shout-out to 
Rabbit and Red Flag clip art is used under appropriate free license.