I think the key question is why would the developers suddenly change the classic star (which has been there since the beginning) to a plus sign? Or did something else happen that was related to the 'hack'? Regardless, a large mathematical symbol in the middle of a word game board looks jarring to me. I'll admit it's not that important considering we only see it for a few seconds.
@roymccoy You have to remember that developers are paid to do things. They cannot, by definition of their jobs, leave well enough alone. If everything were fine in their view they would go home and they'd be out of a job so they always have to continually tweak and "improve" things. It's frigging annoying sometimes and this is an example of it. In no other industry of which I'm aware, does this happen. The motto, "If it ain't broke don't fix it," is anathema to them.
There's truth in what you say, despite a bit of exaggeration. I'm not sure, however, that the Lexulous developers are doing anything, except a very few rare and nonsensical things such as replacing the star (itself unattractive compared to the earlier one) with a plus sign. The arrows still aren't fixed, etc.