Some arguments for a second Steam-account. Peace asked this earlier in dm. So copied from there.
(1)In the first instance I wanted to use the second account for all the gleam.io, etc. giveaways. I got too many stuff from Steam saying this or that on my wishlist was now cheaper. The mails for the second account go to another e-mail account.
(2) Later I also used the second account for cards. I could give some cards from the wintersale to my main account.



So I can make another thing from the cards. Badge or something? I am not a very experienced Steam-user.

(3) I did also use it for the Chat-stickers. I can chat with myself ... Something like this:

(4) And it is possible that someone else can play a game from one account even when I am using the other account!
(5) You could use the second Steam-account to VPN to a region where the prices are lower than your own region. Or to a region where there are games you cannot access in your own region. You have to be able to pay in that region. I do not know if Steam forbids this in its rules. I don't use it for that.