Do in-game reports work?

The player, PWNZevZ (ally code: 142627586), doesn't even have a single 6 or 7 star ship and only two level 85 ships and is climbing to rank #1 every day in a fleet arena full of max star and level fleets. His ships do not have enough health, are not fast enough, and do not put out enough damage to be competitive here. I'm sorry you've had some bad experiences with fleet shards given that message and your previous ones, but this person is definitely cheating. This isn't me trying to control the arena, it's just blatant confusion on how this goes unpunished.

Saying "they aren't cheating" when there are people such as this person, ally code: 142627586, climbing to top 50 in a squad arena full of SLKRs without a single relic character just makes you look like a cheater yourself trying to protect the practice.

They're definitely cheating. 142627586 is their ally code and you can see for yourself that their collection doesn't have the bulk, speed, or offense to match up against max level and star relic ships that actually have faction synergy. 

Do you also think that this person, ally code: 853777792, can climb a squad arena full of SLKRs without cheating? This isn't about controlling other people in my arenas, this is my confusion about how it's possible to do what they're doing.