There is no need to put someone else down on their decision to use what they feel comfortable with. Recommending discord was enough instead of also insulting skype or his decision to use it. If people wanna use skype, there no reason to tell them not to or shame it. But to be honest, i think discord is a better option since it can host servers for you to inivite by codes, instead of sharing id which may be more problematic to set up especially on vita. But i can see why you may want to use it since you did mention PS vita, i assume is cause you are able to use skyp on it unlike discord which is not on vita.
If that is the case, i understand and is nothing wrong with that, but vita skype is very limited as to only supporting video or voice, with no text, files or image sharing, so is something to consider if maybe you have another mobile device or PC perhaps.
