Will the following entities please stop spamming my blog

Whereas I have been experimenting with Google Ads on my blog, just to see what would happen (nothing much has :-( but I don't care :-)) this blog is essentially non-commercial.  I therefore would respectfully request that the following providers of services in the UAE please desist making vacuous comments on my blog (such as those shown below).

Comments are welcome if they contribute to the conversation around diving in the UAE or anywhere, but the incessant comments generated no-telling-how show no understanding of what is in my posts apart from the fact that they are targeting a blog whose content is often about sea sports in Musandam.

If you would like to comment with any kind of substance regarding the content of the posts, welcome, but the comments of which the following are but a small sampling are becoming annoying, and I've been moderating them as spam (but they keep coming, so Google/Blogger needs to improve its spam filter).

The above were published apparently, but I removed them as spam using the tool shown.  Interesting there has been no spam as yet on THIS particular post :-). I added some appropriate tags to see if I could attract some ... 

Meanwhile, my Google ad earnings have been hardly stellar. I'll leave it on a while longer and maybe switch it off :-)

As a footnote here: I have renewed my request that the spammers please desist from spamming my blog here: http://vancesdiveblogs.blogspot.ae/2013/05/adsense-and-nonsense-not-dive-log-entry.html

Amazingly, they have left spam comments at almost every post apart from this one, suggesting that they ARE reading the blog.  In that case, thanks :-)

I take that back, checking below I see that they did get one post through in Dec 2012.  Ok, the brute force attack does let some get through, and now you see what I mean.