I’ve waited a few days before posting this, just to be sure, but it seems my ability to post comments and not be recognised as spam has been restored. Yay!
Interestingly, it appears I may have been doing Akismet a disservice. They claim that the issue was nothing to do with them and that I was never on their blocked list. I’ve heard rumours that it may have been something to do with a couple of Internet Service Providers in the UK, Sky & BT. Whatever the reason, what I can say is that the follow up from Akismet was very good, regardless of whether they were to blame or not, so thank you for that.
For those of you who have contacted me with the same issue, I hope you are all now OK. If not, I believe the end is in sight, but don’t hesitate to contact Akismet if you haven’t yet, because I don’t believe my issue would have been solved without them.