, i use them also. i thought the old guys handwriting on the visa would raise eyebrows but never had a problem.
I went to the the house at Invercargill once..felt a bit wierd about it, but maybe thats the way to go, save $20 on the certified mail and no stressing over waiting for it to turn up in the mailbox!
Just my opinion, but someone more cluey will probably chip in soon also.
1. They obviously have your history on file, so (if) they look back, unfortunately, they seem to be equating travellers with many V exempt entries as people getting up to nefarious behaviour.
ie. working illegally.
If you dont have any more VE's for at least 12 months i think you will be ok, but who knows.
2. Maybe they were hinting about METV, which is a longer term visa you can only get from your home country.
Visiting other S.E.Asian countries is ideal if you intend coming back to Thailand intermittently, as you can get single entry visas from each of the countries you visit.
At least that will make you look like more of a legit tourist ( in their eyes).
I wouldnt be trying any more visa exempts tho!
3. As a general rule they say 2 per year, but with your history and the low cost of visas, i wouldnt risk it.
IMO, i dont think its the land entries so much, but if you get flagged at an airport, or if some stroppy IMM officer is having a bad day sees your history, they might give you grief.
IMO again, i guess they have various reasons to consider people who get many VE's as dodgy.
- it may look as though you are avoiding the scrutiny of getting a proper visa.
-they suspect you might not be able to comply with the visa conditions.
-could be a criminal or up to no good.
-havent got the money for a visa, therefor cant support yourself..
-which then they will suspect you are working illegally.
Myself, i have a LONG history of tourist visas but never even 1 exempt, which i think is a factor in never being asked any questions