You do what you want and spar however you want, just turn off your public chat.
To this day I get experienced sparers crying because of my delay (which is something I can’t help) it doesn’t matter if you wall or not they will always find an excuse for their lost.
But, to be honest I don’t like players that walls either. That applies to all sparers I would say, nobody enjoys sparring a player that walls. It wouldn’t help you improve either. (Walling and playing defensive are two different things) The ones who decide to talk trash about it in public chat are just angry because they lost. Anyways, just because most sparers find walling not enjoyable to spar against it doesn’t mean we lose to wallers. I usually find them easy, you just need to be more patient with them.
But if you find sparring while walling is fun for you then go ahead it doesn’t really matter.