I think this place and my account are way too small fry for anyone to bother targeting TBH!

For now. After a repeat of early 2018, your account could be worth over $500,000. It only takes Bitcoin topping out at $300k and an alt season taking HIVE to $10 to $15 after that.

Come to think of it have I ever earned any actual 'money' on Hive? They're just widget-tokens aren't they?

I don't know the details of UK tax law.