when tcollect goes (sorta) buggy....

[parisse]

I have added a count before/after the algorithm is called, but this has side-effects, for example should simplify(sin(5x)/sin(x)) be left as is or be simplified as a polynomial in cos(x)? Comparing the count before and after would mean we leave sin(5x)/sin(x) as is, but I prefer the cos polynomial (and I think most users would). The current patch I did will add a coefficient before comparing, the limit being sin(10x)/sin(x) but this has a drawback: it is inconsistent.
I do not want to make things too inconsistent or to remove the power of simplify for expressions that should be simplified, just because some users are hitting blindly the simplify soft key. The solution is perhaps to remove the softkey and remove the maximum simplification level in the CAS settings if the users behavior can not be changed.