OK, several things:
1) Feature requests are just that... feature requests. That is what that older thread indicates, that someone made a request to add the feature. It is not a high-priority item for SmartBear development because it is not a feature that, apparently, a LOT of people are interested in or there would have been more requests for it.
2) Additionally, there is a sufficient work around. If you want to repeat a test multiple times with the count being variable based upon some sort of value determined at run time, you can do so using a "For" loop, either as a Keyword test operation or writing it as script code. This was also suggested in that previous thread you linked to. Since such a convenient work around exists already in TestComplete (and it's stuff that's been there for YEARS), that also reduces the ranking of the feature request... why make a code change to the tool when the tool already supports the desired behavior?
3) Posts on these communities are not "support tickets". The communities are moderated and hosted by SmartBear and SmartBear staff do monitor and respond where appropriate... but these are places for folks like me and Marsha_R and others to collaborate together to solve each other's problems. If you do wish to open a formal ticket, you can do so at https://support.smartbear.com/message/?prod=TestComplete and that will message SmartBear folks directly with your request.
Now... if you do wish to suggest this feature and campaign for it to be implemented, that can be done... go to https://community.smartbear.com/t5/TestComplete-Feature-Requests/idb-p/TestXCompleteFeatureRequests. Search there, first, to see if the request has already been submitted. If so, add your vote and, perhaps, see if you can convince others to do so. If not, feel free to add it.