I didn't get it.Javascript on login is for reCaptcha.I tried to solve a reCaptcha in Tor Browser ( which doesn't let you use JavaScript on default plugin settings ) and it gave me a code to copy-paste for solving the captcha.Since now the login page says it requires Java it's probably true.Solving a single captcha doesn't going to drain your battery or it won't do something while you are surfing the forum.
Yes dear. I use lite browsers when spending alot of time on a particular website usually to make things easy for my phone.
Recently someone has taken to using 5000+ IPs to bypass rate-limits and try many passwords. Therefore, it is now required to solve a captcha when logging in. JavaScript is required for this. I know that several forum users like to use NoScript, but I am not aware of any high-quality (ie. not OCR-able) captcha services/libraries which don't require JavaScript. You can maybe enable JS just for the login page, and then disable it again afterward.
There are a few people who use automated bots which need to login. Contact me with a description of your bot, and if it seems reasonable, I will give you a key which will allow you to bypass the captcha.
Let me know if you see any bugs.
I guess you really need a phone and a browser that is using a Javascrypt. If you are thinking about your battery, you can charge your phone while using it, you said you are doing research. You said you are taking time to increase your ranks? Does that mean you have more accounts waiting to be ranked up? well that's clear.