I have contacted the pet brands she's worked with, here's what I wrote to Tails as an example for others if they wish to do the same:
Dear Marketing and Communications Team at Tails,
I would like to draw your attention to some hateful, abusive tweets that have surfaced from influencer Elle Darby that I understand Tails has worked with. Screenshots of the tweets are attached for you to see.
As an animal lover and professional in marketing and comms myself I have been shocked and saddened that these abusive tweets have emerged from someone who has branded herself an animal lover, and worked with pet charities and brands such as yourself.
Also as a customer of yours who recently used her influencer discount code I feel very let down and hurt that I have unknowingly supported someone who has expressed such vile and abusive behaviour towards their family pets.
Regardless of how long ago, the sheer amount of abusive tweets that have surfaced is concerning, not only about her animals but hideous racist and discriminatory tweets also. It shows a pattern of behaviour and an attitude which comes across as deeply engrained. In my opinion as a customer of yours it has forfeited her right to the platform she has where she promotes pet care brands for her own monetary gain and public status.
I'm saddened and shocked by her words stating she wants her 'ugly, spiteful, mongrel cat to die and get run over'. How was that cat treated behind closed doors? I'm sure you agree that animals of all shapes and sizes deserve love and care, not just her young, golden Labradors. As I said it is concerning and makes her an untrustworthy and disingenuous influencer of pet products.
I believe it is important that brands consider the values and behaviour of the influencers they work with. I also believe that influencers need to be held accountable for their actions, just as anyone else would in any given line of work. Even more so, with how impressionable influencers are to young people integrity, honesty and transparency is especially needed. I hope this message gets passed on to the relevant people and I look forward to your reply on this matter.
Kind regards