I was reading the unofficial list of rule and these caught my attention. Please pardon me if these questions or concerns have been treated before, but I have gone through some other threads and I haven't seen anywhere that this concern was handled.
This was drawn from the list of unofficial rules of the forum.
I don't know why you quoted it and posted it in a new thread instead of replying to the thread you quoted it from. After all - the thread is not locked and anyone can ask question about the rules that confuse you there.
Having alts account is not encouraged so far because you will not be there and be here at the same time, this may not be against the rules
That's all there is to it - meaning having more than one account is absolutely no problem. But don't violate rules and norms that could damage your own reputation.
Of course there are exceptions - if your main account has been banned for whatever reason, then you should just create a second account to appeal and only post it on meta.