Of course it's a good idea to day trading eth.You can earn handsome money by day trading. But in order to do that you should have a good Knowledge about day trading or you can loose money.
If you don't have a real job it becomes a great activity but if you have another job it will be difficult for you to divide your time. That's in my opinion.
In trading we have easy to handle the each and every changes because we have more options to fix the trade level so once it is reach the enough range automatically it will be trade and store our wallet. But If we need more profits in trading we must check the trade limit in every hour. Number of ETH groups are available in many social media so we must sign up and monitor the conversation is better make a good profit for all the investors.
For me what you just said is not good idea and that is one that a trader should avoid which is by listening to the groups of traders because opinions of others cannot help us to make money in trading, we should become dependent only in ourselves where we should do manual trade and avoid rumors and opinions of other people. Day trading ETH is not that easy because mastering the short term time frames are required there wherein the price are so unstable and there are so many fake signals.