Would this result in a violation of the ToS?...

I really want to add my alts as friends but will refrain from doing so if it endangers my Service Account, it could be considered as cheating!...

Not that it matters to the ones that have done it already and are enjoying the benefits that come with it, like sharing a house partially!...

I would like to hear SE's position about this "glitch" and I would certainly like an official method to add alts to the friends list and furthermore allow them to automatically share the house without taking a tenant slot!...

"Tenants" are not the same as "co-owners" as they would depend on permissions and I don't really want to give my other tenants full control of my house, alts however can be considered as "family" and should have unrestricted access to the house!...