I never used any panel but i'm seeing lots of people saying they're dead or don't work like they used to.
I think these panels are using cheap proxies and shadowbanned accounts and recycling them
when i was developing my custom reddit api, i found that the upvotes, comments, and even posting all stick (they're still live now) IF you use a good account that is not shadowbanned + good proxy
I even used cheap datacenter proxies with a fresh 1 week account and it worked but i only tested few comemnts all using api only without any browser
So i learned that the very important thing is the behaviour, account reputation and then proxy quality (mobile proxy is the best), and then other things like browser fingerprints, upvoting, and commenting frequency