Eric
playing normally with his other accounts vs your team and setting illegal formations vs his top dog team.
that's a serious case

it is unfair to support his own team with his other own teams !
that's not.
Any experienced player must know that support from friends , is one of the very minor factors that affect a match.
Personally I believe it's more psychological than practical.
I also have 5 teams (different levels, in two servers) but never use them to support one of my teams.
I use only one from the old version, so to have a better picture of the game (the stats) as in the new version you must switch screen to see them and my fingers stuck sometimes lol
I have enough friends so in every game there are at least ten supporters.
Barry many times is one of them and can see there Tigran or Rinokeros or none of them.
I really don't see any advantage to that.

In asc. games, it's even worst because you have to coach those teams - see the stats, oppo rates, think, give bonus, make subs, support the other friends.

As I told above, I played last month in the FA groups of my two teams, with the teams of friends who were in vacations (Beckstar and Alex).
Sometimes the groups were playing at the same time so I had to coach 4 teams
It was nightmare and I 'm sure I lost some games/points because of that.

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Coaching 6 teams at the same time ?
Sorry, I still cannot see any advantage to that.

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But do it quickly because I don't think if you loose your match versus this association, Nordeus will give you back points and qualification !!!
not enough time.
Even nord guys deserve a week end