the main point of staking an address is that when you wanted to prove something and sign a message that message has to be easily verifiable by anyone. you can safely say that every user on this forum uses bitcoin but you can't say they also use ethereum.
so long as you can stake your bitcoin address there is no need for a duplicate topic staking another altcoin's addresses. and it won't stop at ETH, you want ETH someone else wants LTC, another person another altcoin and so on. there will be no end to it.
I understand the main point of staking ETH Address, yes it is for proving that you own that wallet as well as this Bitcointalk account, I'm just afraid of losing this, that I have no proof that this is mine. I think BTC and ETH address is the only accepted address here to use for signing a message. And sorry, I didn't mean to have a duplicate post, I just want to know if there is a post regarding ETH signing message. Anyways thank you for the reply.
Have you even read his reply? He just states that there isn't a ETH adress stake thread since this is a bitcoin forum. If you give in to that you'll soon need to give in to every shitcoin.
I think BTC and ETH address is the only accepted address here to use for signing a message.
To recover your account? No, only signed messages from a bitcoin adress you staked are allowed. However i could see exceptions being made to that rule, but to say that it's widely accepted by mods/admins here is wrong. I wouldn't take my chances.
For more information about recovering your account, check out
https://bitcointalk.org/index.php?topic=497545.0 where the administrator explicitely states that proving ownership through a signed message with a staked 'BITCOIN' adress is the preferred way.