Insanity: doing the same thing over and over again and expecting different results.
I was making a comfortable amount of gold by selling horde side glyphs. Something I have done before, and will do again. However recently I have been shutout by a very efficient 1c camping undercutter. This was to the point where I have sold no glyphs all week, despite posting twice a day. This compares to 5K per week posting once every 2 days about 3 months ago.
About a month ago, I decided it was time to start restocking glyphs - herb prices were not going down any more and I was out of many of them. My stock levels are 20 horde glyphs, 20 alliance glyphs. Even if you have glyphs to start with - that is a blessed lot of glyphs to make.
About a fortnight ago, I put a ceiling on glyph prices of 60g. Over the weekend I brought over the last of my horde backlog.
I am not capable of 1copper undercutting and camping; either mentally or (normally) timewise. Over the weekend I made an exception. To the camping bit - not the 1c.
This wall of glyphs was brought to you by a 1c undercutter and myself. Every time he 1c undercut; I posted deeper undercuts in return. You note that he cancelled postings; I kept postings.
Over the last week, I made zero in glyph sales; today, I made a profit. Not a large profit but even at 14g I am still in front. I also stopped posting once I stopped being undercut. This glyph was in my last batch (about 1/3 of glpyhs) and I waited for an undercut that never happened - so I stopped posting. My competition however is still stuck with the 18g50 wall on almost all glyphs.
If you try to own a large market at large profit margins, it is inevitable that someone will ... allow you to own the market at negligible profit margins. This has happened to plenty of players - myself included.
To those fellow competitors on Horde Caelestrasz, nothing personal. I just am not going to be hounded out of a large profit on glyphs. I am however perfectly prepared to be hounded out of a negligible market profit.