Would you be opposed to SE implementing a program to scan for addons/parsers?

[FireMage]

No imho it isn’t stupid. DPS meters undeniably create toxicity.
FF: If a group fails a DPS check, everyone will try harder, because it’s not possible to see who is struggling the most.
WoW: If a group fails a DPS check, the one who has the lowest DPS gets kicked immediately.

Which game of those two do you want to play? After 10 years of WoW where I was afraid to even try raiding, I’m glad I’m playing FF instead now. DPS meters are not necessary at all and the day FF allows them, will be the day I quit FF.

You can easily pinpoint a low-performing player even without a DPS meter. Experienced players can immediately tell who doesn’t know their rotation even without a DPS meter. There’s no need to reduce group effort to plain numbers like in WoW.

No, bad players not carrying their weight create toxicity, not meters. Also given your numbers of course a community that actively dismisses bads would make you "afraid"

[Tulvi]

No, bad players not carrying their weight create toxicity, not meters. Also given your numbers of course a community that actively dismisses bads would make you "afraid"

Bad players create toxicity? Sorry, but then we understand toxicity differently. I have never seen a bad player insult the good ones when being called out, only apologise and express willingness to learn. But I’ve seen too much of “bro, your DPS sucks” (followed by a kick from a party in WoW without any discussion).

It isn’t toxic to not know your class 100% or make an occasional mistake.
It could be toxic only in case of trolling, but that’s a completely different discussion.