The mono-facetedI'm with you here.
I seem to remember thatAdmin changed the name of the starter of a fairly recent match thread from
ArcspacE to himself, for precisely the reason you're complaining about (people couldn't see it, because he was on ignore). If admin can do it once, he can do it whenever he wants to. Although I don't have
ArcspacE on ignore I can see how he/she starting match threads might be a frustration for you and for several others.
The problem with preventingArcspacE from starting match threads (which is surely possible) may be a philosophical one, or it may be because admin doesn't need the hassle. This place is gloriously anarchic. If admin were to start actively policing the forum it would both diminish the nature of the beast and make work for admin, which I am sure s/he/they don't want.
The only solutions I can think of are:
1. Admin tellsArcspacE not to start match threads, or he/she will be sanctioned. This would be easy to do and easy to implement, but fundamentally alter the forum's 'free' philosophy.
2. You appeal to @rcspace's better nature - ask him/her to refrain from starting match threads. Good luck with that one! He/she will just do it more, as he/she craves attention and gets a strange, childish kick out of pissing people off.
I'm sure there are other solutions - I just can't think of any.

There you have him/her in a nutshell