Jan, with all due respect for everyone’s hard work and experience with these forums, especially yours as a long time contributor to this community (I’ve done my research and I acknowledge I had jumped to invalid conclusions and made foolish assumptions in the past), I’d like to point out a small detail about the issue reported in the aforementioned reviews that might have been overlooked.
The PCLZIP_ERR_BAD_FORMAT
error most probably has to do with the extraction of the downloaded plugin package (or of what was meant to be the downloaded archive anyway). From my little experience with how this repository and plugin downloads work, I can say that plugin authors have no involvement in the packaging of plugins into zip archives. This process takes place on the wordpress org servers by using data directly from the subversion repository to which plugin authors have previously committed the new releases.
So, if that reviewer had problems installing a plugin package from wordpress org and not from any other external locations, for which the plugin author is of course responsible, then those reviews about this specific error seem a little unfair and misleading, since they judge those plugins about things over which the plugin authors have no control. By the way, I have never used a page builder plugin, have no idea whether they are any good or not and do not know their developers.
Taking it a step further, I did the following searches on Google:
"PCLZIP_ERR_BAD_FORMAT" wordpress
(7140 results)
"PCLZIP_ERR_BAD_FORMAT" -wordpress
(2210 results)
These definitely make someone think whether there might be an underlying problem with a buggy library that is used somewhere in WP or in the process of plugin packaging or delivery. Then again, these results might be natural due to the high popularity of WordPress and within the limits of standard error, but some investigation about it by the WP devs might be a good idea just to be sure that the problem exists on the user’s end only.
Thanks in advance for taking this into consideration and thanks for contributing!
George