Interesting to note the number of references to Waheed Alli in just this thread : referred to repeatedly as: a donor to the Labour party, donated over £500,000 over the past 20 years, labour donor for twenty years etc.
The cause of all the suspicion is that he has recently donated money to influential Labour members for specific purposes: parties, loans of the penthouse and American apartment, reading glasses and clothes, presented as office expenses.
Not for, more usefully: office space, folding machines, printers, posters, extra staff etc which most local election groups are desperate for, but instead unnecessary luxuries for his 'friends.' who could well afford to pay themselves.
That is what all the outrage is about, as there was when Boris was given money supposedly for ridiculously expensive wallpaper. Donations generally go towards the expenses of fighting elections, not for gifts to wealthy people, who are avidly seizing the perks they have accused other parties of enjoying.
Alli acquired a peerage for his support of Blair; I have no idea what he wants now, but there will be something. Perhaps it is just friend in high places. If he really cared for the Labour party he would have supported struggling members during the Corbyn era.