Absolutely nobody that has ever existed in WA is NOT an avoider. We all are in different ways.
Look up the pick history of everyone, very few players don't pick and choose their schemes against opponents.
For example, I avoid everyone in TUS Singles, it's just not good enough imo to spend time playing 13 schemes for absolutely nothing! Even if you win everything, maybe half a dozen people will say "Well done" and even though it took you literally years of training to get that good, absolutely nobody cares! Imo it's more of a challenge to master all schemes in WA than win any other competitive eSport in the world or any speedrun in the world.
Not to mention even the schemes you DO like there's hardly anyone to even play with! So unless you're literally obsessed with playing all schemes as in enjoy it more than anything else in the world, everyone is an avoider.
When I played TUS BnG it was to always pick BnG, avoided anything else other than Roper, I'd pretty much just give free wins, I wasn't afraid of losing, but was afraid of wasting my time playing schemes that literally bored the living f**k out of me... But at least I'd play absolutely anyone at BnG! Only trouble is at the time most of the top players would avoid me, Random00 only played me once, never again although I asked.
Many players, will play multiple games vs weaker opponents, then only 1 or 2 against strong opponents. It makes sense right? Play more when you're winning, but you get angry and don't want to play more when you lose too much?
I've heard endless complaining about a specific person and Team17 who won't play other top players often enough.

So it's not entirely like, avoiding, but it's like, selective avoiding and picking their schemes, making sure they get more games against weaker players.
Most people are guilty of this, it's not even deliberate really... It's down to the League available to us.
This is one specific reason why I wanted to start up the 3 scheme League, there's no way you can beat the best unless you like one of those schemes because you can't play them on schemes nobody players or have to play for sure against current activity or you miss your chance entirely.