Bot and email problems

Problem number one: Lots of bots have been creating hundreds of fake accounts every day.

I have been deleting them, and I may have accidentally deleted some genuine accounts by mistake. Sorry for that. If this has happened to you, please re-register. There is now a 'Captcha' question to try and eliminate the bots. This will appear after you submit your account, and is a simple arithmetic question e.g. '7+6 ='.

Problem number two: This site was originally written for 1,000 users. There are now about 29,000 registered users. This has caused email problems. (My ISP has a daily email allowance, which the site does not exceed. However, they insist on dividing that allowance by 24 to get an allowance per hour). There are too many people wanting their emails at 6,7 or 8 in the morning, and some are going missing. This is, of course, not helped when several hundred bots are causing registration emails to be created.

I will be changing the times emails are delivered soon, to better spread them out over the day.