Why do Tier 1 pros play on random unsigned teams?

I was going through Asuna's player profile and found he played a couple games in the NSG tourney for "actually homeless", went to soulcas's profile too and he does the same for a roster called "unsigned", is there a reason pro's do this?

filler tournaments when they bored?

They make mix to play while looking for team

Asuna was playing with his little bro Bearkun

Because t1 teams only play like every 3 months since rito is slacking on the non-VCT tournaments

Since the teams are unsigned they don't get paid so must be just for fun and experience. Being able to play with your friends in a tournaments like these must be refreshing for pros like Asuna.

Because there is some rule made by rito that Big team like 100t , sentinel and other cant participate in tier1-2 tournament + They act as filler player

Soulcas was playing with irl friends iirf

So they can have fun with friends and smurf on these t4 kids

I’m actually concerned why scourge was playing with the likes of “Asuna” anyways, scourge is leagues above asuna