Feddit UK continues to grow, and as such @tom@feddit.uk is going to need to spend more time and money on hosting, moderation, and general tinkering. Using the Ko-Fi link is good for giving the odd one-off donation, but perhaps an OpenCollective account (like some of the Mastodon servers are using) would be a longer-term approach.
I notice Lemmy.world also run a Patreon account which is worth thinking about as plenty of people have that.
They also attach a panel to each community with relevant information, although I would prefer it to be collapsed by default. This would definitely be useful especially with helpful links for new users.